What might you expect to observe from this double-displacement reaction: CoCl2(aq) + Na2SO4(aq) ---> CoSO4 + 2NaCl?
Edit
A. CoSO4 precipitate will form.
B. NaCl precipitate will form.
C. one of these products will bubble out as a gas.
D. There will be no chemical change because there will be no chemical reaction; the ions will remain suspended in the water solution.

Answers

Answer 1

To decide the outcome of this reaction, we need to know the state of the products, as in if they are solid, liquid, gaseous, aqueous, etc. The proper reaction is as follows:

CoCl₂ (aq) + Na₂SO₄ (aq) → CoSO₄ (aq) + 2NaCl (aq)

If we were to look up the species CoSO₄ and NaCl, we would find that both of these species are also aqueous. Therefore, neither CoSO₄ or NaCl will precipitate from the solution, so we can ignore options A and B. Neither species formed is gaseous either, therefore, it cannot be option C. That leaves us with option D as the answer.

D is the correct answer because the product of the double displacement is the formation of two more aqueous species which will remain dissociated in the aqueous solution leading to no chemical reaction overall.

Related Questions

What is the ph of a 0.01 m solution of the strong acid hno3 in water?

Answers

The pH of a 0.01 M solution of the strong acid [tex]HNO$_3$[/tex] in water is 2.

To determine the pH of a strong acid solution, we can use the fact that strong acids completely dissociate in water. This means that for a 0.01 M solution of [tex]HNO$_3$[/tex], all of the [tex]HNO$_3$[/tex] molecules dissociate into H⁺ ions and [tex]NO$_3$$^-$[/tex] ions. Therefore, the concentration of H⁺ ions in the solution is equal to the concentration of the [tex]HNO$_3$[/tex] solution, which is 0.01 M.

The pH of a solution is defined as the negative logarithm (base 10) of the hydrogen ion concentration [H⁺]:

[tex]\[ \text{pH} = -\log_{10} [\text{H}^+] \][/tex]

Substituting the concentration of H⁺ ions into the equation gives:

[tex]\[ \text{pH} = -\log_{10} (0.01) \] \[ \text{pH} = -\log_{10} (10^{-2}) \] \[ \text{pH} = -(-2) \] \[ \text{pH} = 2 \][/tex]

Thus, the pH of a 0.01 M [tex]HNO$_3$[/tex] solution is 2.

Of the choices below which one is not an ionic compound quizlwr

Answers

Final answer:

NC13 is a compound that is not an ionic compound.

Explanation:

Of the compounds listed, the only one that is not an ionic compound is NC13. Ionic compounds are formed between a metal and a nonmetal, where electrons are transferred from the metal atom to the nonmetal atom. Covalent compounds, on the other hand, are formed between nonmetals, where electrons are shared between atoms. In this case, NC13 is covalent because it is composed of nitrogen (a nonmetal) and chlorine (also a nonmetal).

In a reaction, a gas being produced is

Answers

A solid product called a may form when chemicals in two liquids react, as shown in the photograph below. ... The photo- graph below shows an example in which carbon dioxide gas is produced by a chemical reaction. Temperature Change Most chemicalreactions involve a temperature. change.

An explanation based on experimentation and data is a scientific

Answers

Hello,

Here is your answer:

The proper answer to the question is a "scientific theory"! That's because a scientific theory is a explanation based on expierment and data!

Your answer is scientific theory!

If you need anymore help feel free to ask me!

Hope this helps!

what is part of the first stage in the process of technological design

Answers

Answer:

Researching information

Explanation: Edge 2020

hope this helps <3. Brainliest?

Identifying the problem is the first stage in the process of technological design.

What do you mean by technological design?

Technological design is a distinctive process with a number of defining characteristics: It is purposeful; it is based on certain requirements; it is iterative; it is creative; and it is systematic.

The four steps in the technological design process are:

Identify the problem Design a solution or product Implement the design Evaluate the product/solution.

Hence, identifying the problem is the first stage in the process of technological design.

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Will maynez burns a 0.8-g peanut beneath 76 g of water, which increases in temperature from 22âc to 46 âc. (the specific heat capacity of water is 1.0 cal/(gââc).)

Answers

Based on the information provided, it appears that you will need to calculate the amount of heat absorbed by the water from the peanut that was burned. We are given the following information:

specific heat capacity, c = 1.0 cal/g°C
mass of water = 76 g
Ti = 22°C
Tf = 46°C
change in temperature, ΔT = 24°C

We can use the formula q = mcΔT to measure the amount of energy absorbed by the water to increase in tempature:

q = (76 g)(1.0 cal/g°C)(24°C)

q = 1824 cal

Therefore, the water absorbed 1824 calories from the peanut that was burned.

Identify which statement describes the following process. 2Ce + 3Cu2+ → 3Cu + 2Ce3+
A-Ce is oxidized because it is losing electrons and Cu is reduced because it is gaining electrons.
B-Ce is oxidized because it is losing electrons and Cu is reduced because it is losing electrons.
C-Ce is reduced because it is losing electrons and Cu is oxidized because it is gaining electrons.
D-Ce is reduced because it is gaining electrons and Cu is oxidized because it is losing electrons.

Answers

Answer: A-Ce is oxidized because it is losing electrons and Cu is reduced because it is gaining electrons.

There are two reactions in the equation, oxidation and reduction. A molecule that oxidized will lose electrons while the molecule that reduced will gain electrons. In this case, Cu2+ changed into Cu which means its oxidation number reduced from +2 into 0. Ce oxidation number increased from 0 into +3

The correct statement describing the process is A. Ce is oxidized because it is losing electrons and Cu is reduced because it is gaining electrons.

To understand the oxidation and reduction processes in the given chemical reaction, we need to look at the changes in the oxidation states of the elements involved:

The reaction is:

[tex]\[ 2\text{Ce} + 3\text{Cu}^{2+} \rightarrow 3\text{Cu} + 2\text{Ce}^{3+} \][/tex]

For cerium (Ce), it starts with an oxidation state of 0 (since it is an elemental form) and ends up as Ce³⁺ , which means its oxidation state has increased from 0 to +3. An increase in oxidation state indicates that the element has lost electrons, which is the definition of oxidation. Therefore, Ce is oxidized. For copper (Cu), it starts with an oxidation state of +2 (since it is in the form of Cu²⁺ ions) and ends up as elemental copper with an oxidation state of 0. A decrease in oxidation state indicates that the element has gained electrons, which is the definition of reduction. Therefore, Cu is reduced. The correct description of the process is that Ce is oxidized because it loses electrons, and Cu is reduced because it gains electrons, which corresponds to option A. The other options contain incorrect descriptions of the oxidation and reduction processes for Ce and Cu.

What is the mass of 1.71 ✕ 1023 molecules of h2so4?

Answers

The equation for calculating a mass is as follows:

m=n×M

Molar mass (M) we can determine from Ar that can read in a periodical table, and a number of moles we can calculate from the available date for N:

n(H2SO4)=N/NA

n(H2SO4)= 1.7×10²³ / 6 × 10²³

n(H2SO4)= 0.3 mole

Now we can calculate a mass of H2SO4:

m(H2SO4) = n×M = 0.3 × 98 = 27.8 g

HELP. Check all answers that apply.
Copper oxide is a(n):
atom.
molecule.
subatomic particle.
element.
compound.

Answers

I think the answer is compound

The answer is compound subatomic particles i think.

Why will oil and water never mix second law of thermodynamics?

Answers

The second law of thermodynamics states that the total entropy can never decrease over time for an isolated system, that is , a system in which neither energy nor matter can enter nor leave.

Three different sub-atomic particles are described below:
Particle X: Uncharged
Particle Y: Present outside the nucleus
Particle Z: Attracts Particle Y
Which statement is true?
X is a neutron, Y is an electron, and Z is a proton.
X is a neutron, Y is a proton, and Z is an electron.
X is a proton, Y is an electron, and Z is a neutron.
X is an electron, Y is a proton, and Z is a neutron.

Answers

Particle x is uncharged. That makes the last 2 wrong. Both electrons and protons have charges.

If y is outside the nucleus, it is an electron. and z must be the proton.

Choose the first answer. <<<<<<=====

Answer:

The first answer

Explanation:

Why? Because i got it right on my test.

I didn't copy of the other persons answer.

What is the energy of an object in motion

Answers

It's kinetic energy :)

A gas has a pressure of 0.410 atm and volume of 32 L. At what pressure, would the volume of the gas change to 28 L

Answers

The question here follows the ideal gas law, so we can say that the ideal gas equation is applicable which is PV = nRT
where:P is pressure,V is volume,n is number of moles, R is universal gas constant, andT is temperature.
When the right-hand side of the equation is constant, P₁V₁ = P₂V₂ this is the existing relationship,
Substituting the given will give us:(0.410 atm)(32 L) = (P₂)(28 L)P₂ = 0.4686

Which of these choices is an indirect cost of using coal?

A. Cost to transport coal
B. Cost of maintaining power plants
C. Cost to mine coal
D. Cost of pollution from burning coal

Answers

Answer:

D. Cost of pollution from burning coal

Explanation:

Energy resources can be classified into two categories: renewable and non-renewable.

Renewable resources are those that can be replenished within a short time. This includes, wind energy, solar, hydrothermal etc

Non-renewable resources in contrast, are finite and are in limited supply. This includes, fossil fuels like coal, oil and natural gas as well as nuclear energy.

Coal is a fossil fuel which also the most common source of energy. However, it pollutes the environment by emitting carbon dioxide which is greenhouse gas.

In an ecosystem ,cost of pollution from burning coal is an indirect cost of using coal.

What is an ecosystem?

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Sulfuric acid reacts with aluminum hydroxide by double replacement. if 34 g of sulfuric acid react with 33 g of aluminum hydroxide, identify the limiting reactant.

Answers

Answer is: sulfuric acid is the limiting reactant.
Chemical reaction: 3H₂SO₄ + 2Al(OH)₃ → Al₂(SO₄)₃ + 6H₂O.
m(H₂SO₄) = 34 g.
n(H₂SO₄) = m(H₂SO₄) ÷ M(H₂SO₄).
n(H₂SO₄) = 34 g ÷ 98 g/mol.
n(H₂SO₄) = 0,346 mol.
m(Al(OH)₃) = 33 g.
n(Al(OH)₃) = 33 g ÷ 78 g/mol.
n(Al(OH)₃) = 0,423 mol.
From chemical reaction: n(H₂SO₄) : n(Al(OH)₃) = 3 : 2.

Final answer:

To determine the limiting reactant between sulfuric acid and aluminum hydroxide, calculate the moles of each reactant using their molar masses. Comparisons based on the stoichiometric ratios from the balanced chemical equation reveal that sulfuric acid is the limiting reactant.

Explanation:

To identify the limiting reactant when 34 g of sulfuric acid reacts with 33 g of aluminum hydroxide, we need to calculate the moles of each reactant based on their molar masses. The balanced chemical equation for the reaction between sulfuric acid (H₂SO₄) and aluminum hydroxide (Al(OH)₃) is:

3 H₂SO₄(aq) + 2 Al(OH)₃(s) → Al₂(SO₄)₃(aq) + 6 H₂O(l)

First, determine the molar mass of H₂SO₄, which is approximately 98 g/mol, and Al(OH)₃, which is approximately 78 g/mol. Then, calculate the moles of each reactant:

Moles of H₂SO₄ = 34 g / 98 g/mol = 0.347 molesMoles of Al(OH)₃ = 33 g / 78 g/mol = 0.423 moles

The balanced equation shows that 3 moles of H₂SO₄ react with 2 moles of Al(OH)₃. We then set up ratios to see which reactant is limiting:

0.347 moles H₂SO₄ × (2 moles Al(OH)₃ / 3 moles H₂SO₄) = 0.231 moles Al(OH)₃ required0.423 moles Al(OH)₃ × (3 moles H₂SO₄ / 2 moles Al(OH)₃) = 0.635 moles H₂SO₄ required

Since we only have 0.347 moles of H₂SO₄ but require 0.635 moles to react with all the available Al(OH)₃, sulfuric acid is the limiting reactant.

51.7ml at 27 Celsius and 90kpa to stp

Answers

STP is the abbreviation of standard condition for temperature and pressure which is 273.15K temperature and 1.013× 10^5 Pa pressure. Since the pressure and temperature changes, I assume the question would ask about the result of the volume. The temperature used in ideal gas should be Kelvin, so 27 Celcius would be 300.15K.
The calculation would be
PV=T
V=T/P

V2/V1= T2*P1/T1*P2
V2/V1=273.15K* 90^10^3Pa/ 300.15K * 1.013× 10^5 Pa
V2= 0.81904 * 51.7ml
V2= 42.34ml

Which of the following applies to a good hypothesis?
Select all that apply

- It explains the data that relates to the specific problem.
- It leads to correct predictions, some of which produce new evidence or experiments.
- It is biased by the experimenter's presuppositions.
- It is formulated based on subjective observations.
- It is formulated based on objective observations

Answers

1). it leads to correct predictions, some of which produce new evidence or experiments.
2). It is formulated based on objective observations.
3). It explains the data that relates to the specific problem.

Hope this helps!
♤MidnightQueen

The statements that applies to a good hypothesis are.

It explains the data that relates to the specific problem.It leads to correct predictions, some of which produce new evidence or experiments. It is formulated based on objective observations

Good hypothesis explained.

A good hypothesis ought to give an clarification for the information related to the issue being examined. It ought to too lead to forecasts that can be tried and possibly create modern prove or tests.

A good hypothesis ought to be defined based on objective perceptions, meaning it ought to be grounded in irrefutable and quantifiable information instead of subjective conclusions or inclinations.

It is worth noticing that a hypothesis can be impacted by earlier

information or foundation presumptions, but it ought to still be based on objective perceptions and open to experimental testing and confirmation.

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What type of reaction is
Na2S (I) + CdNO3 (I) => CdS (s) + 2NaNO3 (I)

A. Double-Displacement
B. Single-Displacement
C. Decomposition
D. Synthesis

Answers

Whenever you see an inorganic chemical reaction that involves the switching or replacing of atoms in ionic compounds, it is termed as a Double displacement reaction.

The Solution is A.

Answer:

The correct answer is A. Double-Displacement

Explanation:

A double displacement reaction is that two elements found in different compounds exchange positions, forming two new compounds. These chemical reactions do not present changes in the number of oxidation or relative load of the element. Generally the exchange occurs between reagents that are ionic compounds in solution, where the anions and cations of the compounds are exchanged.

Double displacement reactions follow the following general chemical equation:

AB + CD --- AD + CB

The initial compounds AB and CD react by exchanging "their partners" and thus form two new compounds: AD and CB. This reaction takes place if and only if A and D are more similar than A and C, or if CB links are more stable than those of CD. Since the reaction is a simple ion exchange, none of these gain or lose electrons, as mentioned above. Thus, if A is a +1 charge cation in compound AB, it will have the same +1 charge in compound AD.

The solvent of the double displacement reactions is almost always water and the reagents and products are usually ionic compounds, although they can also be acids or bases.

On the other hand, a precipitation reaction occurs when two aqueous ionic compounds form a new ionic compound that is not soluble in water. It is an example of double displacement reactions. In most precipitation reactions, one salt is soluble and the other precipitates. The insoluble compound that results is called precipitate. The solvent and soluble reaction compounds are called the supernatant. This is the type of reaction that happens in this case. In this case the insoluble compound is cadmium sulfide CdS.

Marine organisms that are well adapted to drastic changes in salinity would most likely be found in which environment?
a. Hydrothermal vent
b. Estuary
c. Open ocean
d. Deep ocean

Answers

The answer is Estuary

K12 the answer is estuary

Hope this helps!

A sample of ammonia contains 0.500 mol. What volume at STP would the gas occupy?

Answers

To convert from moles to volume, you simply multiply the moles by 22.4 L.

(.500 mol)(22.4L)= 11.2 L

A sample of ammonia would occupy 11.2 L at STP.

I attached a mole map. Hope that'll help you in the future.

Olympic athletes have lower resting heart rates because

Answers

they exercise regularly, which improves the efficiency of their heart.

Hope this helps!

-Payshence xoxo

The vapor pressure of water at 25.0 oc is 23.8 torr. determine the mass of glucose (molar mass = 180. g/mol) needed to add to 27.78 moles of water to make a solution that has a vapor pressure of 23.1 torr.

Answers

According to the formula of vapor pressure:

Pv(solu) = n P°v(water)
when we have Pv(solu) = 23.1 torr & Pv(water) = 23.8 torr so we can get the mole fraction of water (n)
∴ n = Pv(solu) / Pv(water)
= 23.1 / 23.8 = 0.97 mol
when mole fraction of water = moles of water / (moles of water + moles of glucose)
So by substitution::
0.97 = 27.78 / (27.78+ X)
∴moles of gulcose = 0.85 mol
∴ mass of glucose = no.of moles * molar mass
= 0.85 * 180 = 152 g

When 7.94 g of xylene was added to 132.5 g of cyclohexane, the freezing point of the solution was -4.9oC. What is the molar mass of xylene?

Answers

Answer is: molar mass of xylene 106,18 g/mol.
m(xylene) = 7,94 g.
m(cyclohexane) = 132,5 g.
T (solution) = - 4,9 °C.
Tf(cyclohexane) = 6,5 °C, frezing point.
Kf(cyclohexane) = 20,2 K·kg/mol; cryoscopic constant.
ΔT(solution) = 6,5°C - (-4,9°C) = 11,4°C = 11,4 K.
M(xylene) = Kf · m(xylene) ÷ m(cyclohexane) · ΔT(solution).
M(xylene) = 20,2 K·kg/mol · 7,94 g ÷ 0,1325 kg · 11,4 K.
M(xylene) = 106,18 g/mol.

The number of protons is different for each element and is know as the

Answers

The number of protons in an element is the Atomic Number

If the strength of the magnetic field at B is 6 units, the strength of the magnetic field at A is _____.

file:///C:/AOP/SH2016Curric/AOP.COM.Science.09IPC.2015/IntegratedPhysicsandChemistry2015/9/magnetic_field_ex1.gif

Answers

Think its close to 24 if thats a multiple choice answer, I cannot view the image sorry.

Final answer:

The magnetic field strength at point A cannot be determined based solely on the strength at point B being 6 units. Factors such as distance from the magnet, the presence of ferromagnetic materials, and orientation relative to the magnetic lines of force could affect its strength.

Explanation:

Unfortunately, there is missing information in your question. The strength of the magnetic field at point A cannot be determined, just with the strength at point B being 6 units. The magnetic field strength can vary depending on factors like the distance from the magnet, if any ferromagnetic materials are near, and the orientation relative to the magnetic lines of force. Without additional context or information, it's impossible to infer the magnetic field strength at point A accurately.

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Molecules of hydrogen escape from earth, but molecules of oxygen and nitrogen are held to the surface and remain in the atmosphere. explain.

Answers

Hydrogen escape from Earth because he is ligher than molecules of nitrogen and oxygen. Hydrogen move faster and can escape Earth's gravitational force.
One mole of molecule of hydrogen (H₂) has molecular mass 2 g/mol, molecule of nitrogen (N₂) has molecular mass 28 g/mol and oxygen (O₂) has 32 g/mol.

Answer:

Hydrogen is a light molecule

Explanation:

The molecular weight of a gas determines its molecular speed. Hydrogen is a very light gas, far lighter than oxygen or nitrogen. These heavier gases cannot escape the earth because of their molecular weight but hydrogen does escape the earth surface because it is very light molecule having very high molecular speed.

which of the following groups contain 3 elements with stable electron configuration
a. xenon, neon, boron
b. calcium, krypton, argon c. helium, xenon, carbon d. argon, neon, xenon

Answers

Xenon and neon are elements with stable configuration because they are noble gases and have enough to fill their outermost (valence) electron shell. Boron, however, only has 3 electrons in its valence shell, meaning that it is not stable and it needs to gain more electrons to be so. Calcium is an alkali earth metal and has only two electrons in its outermost shell, it will likely lose those two electrons to become stable because it takes less energy than gaining 6. Krypton and argon are other noble gases and have enough electrons to fill their shells. Helium has enough to fill it's outermost shell with 2 due to special properties of that element, it is still a noble gas. Essentially, your answer is D. If you take a look at the periodic table, you'll find your answers out in less time than it took me to type this out. All stable gases, with the exception of hydrogen, are in the last group, usually labeled as "18" but called 8 or 0.

Option d, which includes argon, neon, and xenon, contains three elements with stable electron configurations as they are all noble gases with full valence shells.

The student's question pertains to the electron configuration of elements, specifically identifying a group of elements that all have stable electron configurations. A stable electron configuration typically means having a full valence shell of electrons, which is characteristic of the noble gases. Noble gases include helium, neon, argon, krypton, xenon, and radon, and they are known for being chemically inert, or nonreactive, due to their complete electron shells. The correct answer to the question is option d. argon, neon, xenon, as all three of these elements are noble gases and therefore have a stable electron configuration.

Calculate the mass of chromium found in the 2.50 g sample of stainless steel

Answers

The question is incomplete and missing important information which is provided below:

"Stainless steel is a corrosion resistant alloy composed of nickel, chromium and iron. A lab technician was assigned to determine the mass of chromium in a 2.50 g sample of stainless steel. The sample was first dissolved in acid to convert the chromium metal in the sample to chromium(II) ions. The acidified chromium(II) ions were then titrated with 17.69 mL of 0.125 mol/L perchlorate solution according to the unbalanced equation: ClO4- + Cr2+ --> Cl- + Cr3+. Calculate the mass of chromium found in the 2.50 g sample of stainless steel."

Now with the full question, we can first balance the equation and determine how many moles of Cr were in the sample to begin with. To balance the equation, break the equation down into its two half reactions, balance electrons and charge, then combine the reactions:

ClO₄⁻ + 4H₂O + 8e⁻ → Cl⁻ + 8OH⁻

(Cr²⁺ → Cr³⁺ + 1e⁻) x 8

ClO₄⁻ + 8Cr²⁺ + 4H₂O → Cl⁻ + 8Cr³⁺ + 8OH⁻

We know that 17.69 mL of 0.125 M ClO₄⁻ is required to titrate the Cr²⁺:

0.125 mol/L x 0.01769 L = 0.00221 mol ClO₄⁻

0.00221 mol ClO₄⁻ x 8 mol Cr²⁺/mol ClO₄⁻ = 0.01769 mol Cr²⁺

With moles of chromium, we can now use the molecular weight of chromium to determine the mass of chromium present:

0.01769 mol x 52 g/mol = 0.92 g chromium

In a 2.50 g sample of stainless steel, there is 0.92 g of chromium.

Final answer:

To find the mass of 0.560 moles of chromium, multiply the number of moles by the molar mass of chromium (51.996 g/mol), resulting in 29.11816 grams.

Explanation:

To calculate the mass of chromium found in a 2.50 g sample of stainless steel, we need to know the percentage composition of chromium in the alloy. However, the question provides data for 0.560 moles of chromium and not the composition of the stainless steel sample. To find the mass of 0.560 moles of chromium, we use the molar mass of chromium.

Steps to Calculate Mass of Chromium

Determine the molar mass of chromium from the periodic table, which is approximately 51.996 g/mol.Multiply the number of moles of chromium (0.560 moles) by its molar mass.The resultant product gives the mass of 0.560 moles of chromium.

Performing this calculation: 0.560 moles × 51.996 g/mol = 29.11816 grams of chromium.

How many nad+ are reduced in the β-oxidation of stearoyl-coa to form nine molecules of acetyl-coa?

Answers

The answer should be 8

What is the pH of blood, given the hydrogen ion concentration is 4.0 × 10-8M?

Answers

Clinically, a blood pH of 7.4 is considered a normal value. If the pH of the blood is lower than 7.4, it is shown that the blood is acidic, that you have acidosis or a lack of bases. If the pH of the blood is above 7.4, it is said that the blood is alkaline, that you have an alkalosis or excess of base.

For calculating pH of blood, we will use next equation:

pH = -log c(H⁺)

pH = -log(4.0x10⁻⁸)

pH = 7.4

The pH of blood with a hydrogen ion concentration of 4.0 × 10⁻⁸ M, we use the formula pH = -log[H+]. This results in a pH of approximately 7.4, indicating that blood is slightly alkaline.

The pH of blood given the hydrogen ion concentration, use the formula: pH = -log[H+]

Given: [H+] = 4.0 × 10⁻⁸ M

Step-by-step calculation:

First, find the log of 4.0 × 10⁻⁸log(4.0 × 10-8) = log(4.0) + log(10⁻⁸)log(4.0) ≈ 0.6021log(10-8) = -8Therefore, log(4.0 × 10⁻⁸) ≈ 0.6021 - 8 = -7.3979

So, the pH = -(-7.3979) = 7.3979

Conclusion: The pH of blood is approximately 7.4, which is slightly alkaline.

Other Questions

A biology teacher asks his class to make models of a plant cell, an animal cell, and a bacterial cell. Aside from cytoplasm and the cell membrane, which other cell structure will the students need to make for all three models? Revolution _____. Select all that apply.-was as enticing in Europe and the US as it was in Latin America-was mostly a Western phenomenon during this era-spread to the Caribbean, Haiti, and the Dominican Republic-was over before it began-the root of all of today's uprisings factors force people to move away due to persecution or famine while factors make people want to move away due to better job opportunities. Read the excerpt from The Dark Game.The first thing about the Zimmermann telegram that two Room 40 code breakers, Reverend William Montgomery and Nigel de Grey, noticed was its length, more than a thousand groups. Although the length itself was not suspicious, it was out of the ordinary. Then de Grey noticed the top group of numbers in the message, 13042, a variation of 13040, indicated a German diplomatic code. Since Room 40 had a copy of the 13040 codebook, they began using it to decipher the message.Which details in the text indicate a chronological structure? Check all that apply.The first thingAlthoughThenSince in addition to Puerto Rico which territories were acquired by the United States was part of the peace treaty that ended the Spanish-American War There are three ways to give an object a static charge. They are friction, conduction and induction. Two pieces of cellophane tape are stuck to a lab table. Each piece is quickly ripped off the table. What prediction would you make about what happens when the two pieces of tape are brought near one another?A)Nothing will happen. The tape only sticks when you touch the adhesive.B)The two pieces of tape will repel as both have obtained a static charge.C)The two pieces of tape will attract as both have obtained a static charge.EliminateD)The two piece will cling to each other as a sock clings when it is removed from a clothes dryer. Which phrase from the excerpt is the best example of nonstandard English? For instance during the summer subtle but compelling rhythms laugh the Saws to scorn had heard the people doing In The Odyssey, which of the following sentences best summarizes the reunion between Odysseus and Telemachus?A Telemachus rejects Odysseus because he is angry at the pain and suffering he bore as a boy growing up without a father.B Odysseus becomes angry because he feels that even though he wears the disguise as an old beggar, his son should still recognize him.C Initially, Telemachus is suspicious that the gods are playing a trick on him, but is soon overjoyed when he realizes that his father has truly returned.D Telemachus thinks of one of the suitors as his father now and does not want to accept Odysseus. Which regular polygon will most resemble a circle?square32-gon24-gondodecagon Which is true of Japanese kamikaze pilots? A.Their attacks were hard to defend against. B.Their attacks did not have an impact on American fleets. C.They lived to fight in many battles against the United States. D.Their attacks were a sign that Japan was confident that it could win the war. What does the Nucleus contain? What role do its contents play in the cell? The sentence "aids has been too grim, too overwhelming, and it's been around too long" features _______ and _______. metaphor; alliteration alliteration; antithesis antithesis; metaphor parallelism; repetition Why did islamists oppose secular government and culture in the muslim world? moves river of ice fresh water made of fallen snow snow compressed to ice This is a list of features of a(n) A)glacier. B)ice age. C)iceberg. D)continent. 30 POINTS Should you Put a comma artera second clause what is correct sequence of repair as a fracture bone goes through the healing process? Ginger earns $18,500 annually and has 22% of her gross earnings withheld. What is the net amount of her paycheck each pay period if she is paid biweekly? a. $156 b. $555 c. $601.25 d. $169.58WHOEVER ANSWERS FIRST GETS BRAINIEST At the end of the movie, the jury __________ the defendant "not guilty."a. determineb. declarec. declaresd. pronounce blue jays and robins do not interbreed. assuming that blue jays and robins share the same habitat, describe the possible conditions that keep these bird reproductively isolated. explain your answer. Elizabethan actors were often seen as vagabonds. What is the best definition of a vagabond