Question 1 (1 point)
HOW MANY moles of Neon would be contained in 4.0 L of neon gas at 560 kPa and 127 C?

Answer:

A. Ka X Kb = [H3O+][OH-]

Answer:

A. Ka x Kb = [H3O+] [OH-]

Explanation:

Acids and bases have similarities such as being A. corrosive and B. They both have pH values lower than 7.

Acids and bases have similarities such as being corrosive, having different pH values, and being found in many foods. Acids and bases have several similarities:

Therefore, the correct answer is B. They both have pH values lower than 7.

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Answer:

0.402 moles

Explanation:

1 mole NaCl/58.44g Nacl ×23.5g NaCl

grams get cancelled out and you are left with moles

Hey there!

I think you meant to put iron (II) phosphate, because iron (I) phosphate isn't a thing.

So the formula for iron (II) phosphate is Fe₃(PO₄)₂.

Molar mass:

Fe: 3 x 55.845 = 167.535

P: 2 x 30.97 = 61.94

O: 8 x 16 = 128

-------------------------------------

                      357.475 grams/mole

The molar mass of iron(II) phosphate is 357.475 g/mol.

Hope this helps!

The molar mass for Iron(II) Phosphate is 176.124 g/mol, found by summing the molar masses of iron and phosphate. This calculation involves considering the atomic masses multiplied by the number of atoms in the compound.

The molar mass for Iron(II) Phosphate is computed to be 176.124 g/mol. To determine this, you start by finding the individual molar masses of iron and phosphate and then adding them up according to the compound's formula.

For Iron(II) Phosphate, you'd have 3 iron atoms with a total molar mass of 167.8 g/mol and 2 phosphate ions with a total molar mass of 8.324 g/mol, giving a total molar mass of 176.124 g/mol.

Answer: The specific heat of alloy is [tex]1.23J/g^0C[/tex]

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

[tex]Q=m\times c\times \Delta T[/tex]

Q = Heat absorbed = 297 J

m= mass of substance = 15.4 g

c = specific heat capacity = ?

Initial temperature = [tex]T_i[/tex] = 5.0°C

Final temperature = [tex]T_f[/tex]  =20.7°C

Change in temperature ,[tex]\Delta T=T_f-T_i=(20.7-5.0)^0C=15.7^0C[/tex]

Putting in the values, we get:

[tex]297J=15.4g\times c\times 15.7^0C[/tex]

[tex]c=1.23J/g^0C[/tex]

The specific heat of alloy is [tex]1.23J/g^0C[/tex]

The specific heat capacity of the new alloy is approximately 1.22 J/g°C.

Calculating Specific Heat Capacity:

To calculate the specific heat capacity of a new alloy, we use the formula:

Where:

Rearranging the formula to solve for c:

Therefore, the specific heat capacity of the alloy is approximately 1.22 J/g°C.

Answer:

Mitosis forms two daughter cells. The daughter cells will be exactly the same as the parent cell. Skin cells, liver cells, and generally all somatic cells undergo mitosis besides sex cells.

Explanation:

plz brainlest

hope this helps

cutie :)

Answer:

Inhibitor

Explanation:

Inhibitors generally slow down a reaction rate and prevent the particles from reacting with each other.

It's not the others because:

Catalysts work by lowering the activation energy, which in turn increases the reaction rate as more particles have enough energy to react.

Surface area allows for particles in the reaction to collide more often with each other, which increases the reaction rate.

Temperature increases the speed of particles in the reaction, causing particles to collide more often with each other and therefore increasing the reaction rate.

Inhibitor activity will not cause an increase in reaction rate.

Rate of reaction is defined as the speed at which the chemical reaction takes place defined as the proportional to the increase in concentration of the product per unit time and decrease in concentration of the reactant per unit time.  

Rate of reaction is the part of chemical kinetics.

Inhibitors are defined as a substance that decreases the rate of chemical reaction or it may stop the chemical reaction.

Thus, Inhibitor activity will not cause an increase in reaction rate.

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Answer:

it breaks down food to release energy

Answer: I believe the answer is B) It breaks down food to release energy!!!!

The Empirical formula will be for given compound that is 54.48% carbon, 13.75% hydrogen, and 31.77 % nitrogen is  [tex]C_2H_6N[/tex] .

Explanation:

The formula which gives the simple whole number ratio of the atoms of various elements present in one molecule of the compound is understood as empirical formula. This can be more appropriately understood by solving the given problem as follows:

The % of elements given as:

C = 54.48%

H = 13.75%

N = 31.77%

The atomic mass of elements given as:

C = 12 g

H = 1 g

N = 14 g

Calculating number of moles as :

[tex]N = \frac{Mass}{Molecular-Mass}[/tex]

 [tex]C = \frac{54.48}{12} = 4.54[/tex]

  [tex]H= \frac{13.75}{1} = 13.75[/tex]

  [tex]N = \frac{31.77}{14} = 2.26[/tex]

Now, we will divide the least number of moles from number of moles of  C, H and N respectively, we will round off the values to an integer value:

For C:     [tex]\frac{4.54}{2.26} = 2[/tex]

For H:      [tex]\frac{13.75}{2.26} = 6[/tex]

For N:      [tex]\frac{2.26}{2.26} = 1[/tex]

Hence, C, H and N are in the ratio of 2:6:1, so empirical formula will be for given compound that is 54.48% carbon, 13.75% hydrogen and 31.77 % nitrogen is [tex]C_2H_6N[/tex].

Final answer:

The empirical formula of a compound with a composition of 54.48% carbon, 13.75% hydrogen, and 31.77% nitrogen is C₂H₆N.

Explanation:

To find the empirical formula of a compound with a percent composition of 54.48% carbon, 13.75% hydrogen, and 31.77% nitrogen, follow these steps:

For this compound:

Divide each by the smallest number of moles, which is for nitrogen (2.27 moles):

The smallest whole number ratio is 2:6:1, which simplifies to 1:3:0.5. Since we need whole numbers, we multiply by 2 to get the empirical formula: C₂H₆N.

Answer:

They are the same

I did the activity

Both reaction have same energy. nergy is always assigned based on its nature once it has been transmitted.

Energy is the ability to perform work in physics. It could exist in several different forms, such as potential, kinetic, electrical, chemical, thermal, electrical, radioactive, etc. Additionally, there is heat and work, which is energy being transferred form one body to other. Energy is always assigned based on its nature once it has been transmitted.

Motion is a property of all energy types. For instance, if a body is moving, it possesses kinetic energy. Even while at rest, a tensioned object like a spring or bow has the ability to move; this is because of its design, which includes potential energy. Both reaction have same energy.

Therefore, both reaction have same energy.

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Answer:

Root Wedging is the process in which roots grow into the cracks in rocks and force the cracks open as they continue to grow.

Explanation:

Answer:

pH = +5

Explanation:

pH = - log [H+]

pH = - log (1×10^-5)

pH = 5.

Answer: No

Explanation:

Answer : The molarity of the solution is, 1.1 M LiCl

Explanation : Given,

Mass of [tex]LiCl[/tex] = 32 g

Volume of solution = 655 mL

Molar mass of [tex]LiCl[/tex] = 42.4 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

[tex]\text{Molarity}=\frac{\text{Mass of }LiCl\times 1000}{\text{Molar mass of }LiCl\times \text{Volume of solution (in mL)}}[/tex]

Now put all the given values in this formula, we get:

[tex]\text{Molarity}=\frac{32g\times 1000}{42.4g/mole\times 655mL}=1.1mole/L=1.1M[/tex]

Therefore, the molarity of the solution is, 1.1 M LiCl

The molarity of the LiCl solution is 1.15 M.

To calculate the molarity of the solution, we first need to convert the mass of LiCl to moles using the molar mass of LiCl. The molar mass of LiCl is 6.94 g/mol + 35.45 g/mol = 42.39 g/mol. Therefore, the number of moles of LiCl is:

32 g ÷ 42.39 g/mol = 0.755 mol

Next, we divide the number of moles by the volume of the solution in liters to calculate the molarity:

0.755 mol ÷ 0.655 L = 1.15 M LiCl

Answer:

The pH of the solution is 7.00 .

Explanation:

The pH gives us an idea of the acidity or basicity of a solution. More precisely, it indicates the concentration of H30 + ions present in said solution. The pH scale ranges from 0 to 14: from 0 to 7 corresponds to acid solutions, 7 neutral solutions and between 7 and 14 basic solutions. It is calculated as:

pH = -log (H30 +)

pH= -log (1x10^-7)

pH= 7.00

Answer:

E. All of the Above

Explanation:

Because it requires all to create and reuse carbon

Answer:

D

Explanation:

Answer:

0.8 g

Explanation:

The molarity of a solution is calculated with the following formula:

[tex]M=\frac{n}{V}[/tex]

where:

n is the number of moles of the solute

V is the volume of the solution

In this problem we have:

V = 100.0 mL = 0.1 L is the volume of the solution

M = 0.20 is the molarity

So the number of moles of NaOH in the solution must be

[tex]n=MV=(0.20)(0.1)=0.02 mol[/tex]

The molar mass of NaOH is

[tex]M_m = 40 g/mol[/tex]

Therefore, the mass of NaOH needed in the solution is:

[tex]m=nM_m = (0.02)(40)=0.8 g[/tex]

Final answer:

To make 100.0 mL of a 0.20M NaOH solution, the student needs to weigh out 0.800 grams of sodium hydroxide, using the molar mass of NaOH (40.0 g/mol) and the volume of the solution in liters (0.100 L).

Explanation:

The subject of this question is how many grams of sodium hydroxide (NaOH) are needed to prepare a 100.0 mL of 0.20M NaOH solution. To determine the mass required, we use the molarity equation M = moles/L and rearrange it to find the number of moles of NaOH needed, which is Moles = Molarity × Volume (in liters).

First, convert the volume from mL to L:

100.0 mL × (1 L / 1000 mL) = 0.100 L.

Now, calculate the number of moles required for the solution:

0.20 M × 0.100 L = 0.020 mol NaOH.

With the number of moles and the molar mass of NaOH, which is 40.0 g/mol, we can find the mass needed:

0.020 mol NaOH × 40.0 g/mol = 0.800 g of NaOH.

Therefore, the student needs to weigh out 0.800 grams of sodium hydroxide to make their solution.

Answer:Cognitive dissonance refers to a situation involving conflicting attitudes, beliefs or behaviors. ... For example, when people smoke (behavior) and they know that smoking causes cancer (cognition), they are in a state of cognitive dissonance.

Answer:

Cognitive dissonance refers to a situation involving conflicting attitudes, beliefs or behaviors. For example, when people smoke (behavior) and they know that smoking causes cancer (cognition), they are in a state of cognitive dissonance.

Explanation:

Final answer:

After 7 half-lives, approximately 2.15 grams of carbon-14 will remain from the original 550-gram sample.

Explanation:

The question asks how much remains after 7 half-lives of a 550-gram sample of carbon-14. To solve this, we need to understand that each half-life reduces the amount of carbon-14 by half. So after the first half-life, we have 275 grams left, after the second half-life, we have 137.5 grams left, and so on. After 7 half-lives, we will have:

So, after 7 half-lives, we will have approximately 2.15 grams of carbon-14 remaining from the original 550-gram sample.

Reactants: Carboxylic Acid + Alcohol

Products: Ester + Water

Esters are formed in a chemical reaction called esterification, which typically involves the following reactants and products:

- Reactants:

1. Carboxylic Acid (R-COOH) - an organic compound with a carboxyl group.

2. Alcohol (R'-OH) - an organic compound with a hydroxyl group.

- Products:

1. Ester (R-COO-R') - the organic compound formed from the reaction.

2. Water (H₂O) - a byproduct of the reaction.

This reaction is often catalyzed by an acid, such as sulfuric acid (H₂SO₄).

The combustion of hydrocarbon results in its reaction with oxygen thereby producing carbon dioxide, water and heat. Thus, option A is correct.

Combustion can be given as the chemical reaction that results with the burning in the presence of oxygen, thereby resulting the oxides and the release of energy.

The hydrocarbon are the compounds with the presence of hydrogen and carbon. Thereby the combustion results in the formation of oxides of hydrogen and carbon that is water and carbon dioxide along with heat. Thus, option A is correct.

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There will be change in the population of a species everyday. The carrying capacity is the maximum population that a given area can support. Thus the given statement is right.

The carrying capacity is defined as the maximum population, density or biomass that a specific area can support sustainably. This likely changes over time and also depends on many environmental factors, presence of predators, etc.

It is the carrying capacity which denotes the point where the population cannot grow further theoretically and it is not growing any larger. It can be increased by supplying greater amount of food, decreasing predation, raising the amount of habitat, etc.

It can be decreased by increasing predation, decreasing the amount of habitat, etc. A constant K is used to represent the carrying capacity. It is due to this the population is found to be in a stable state.

Thus carrying capacity is the maximum population that a given area can sustain.

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Answer:

to Calculate the final temperature of the water mixture using the equation T(final) = (m1_T1 + m2_T2) / (m1 + m2), where m1 and m2 are the weights of the water in the first and second containers, T1 is the temperature of the water in the first container and T2 is the temperature of the water in the second container.

To find the final temperature, use the reciprocal form of Charles's law to relate the initial and final temperatures and volumes of a gas.

In order to find the final temperature, we can use the reciprocal form of Charles's law, which relates the initial and final temperatures and volumes of a gas. The equation is T1/V1 = T2/V2, where T1 and V1 are the initial temperature and volume, and T2 and V2 are the final temperature and volume. By rearranging the equation, we can solve for the final temperature:

T2 = (T1 * V2) / V1

Example: If the initial temperature is 20°C, the initial volume is 2 liters, and the final volume is 3 liters, we can substitute these values into the equation to find the final temperature:

T2 = (20 * 3) / 2 = 30°C

Answer:

V₂ = 570 L

Explanation:

Given data:

Initial volume = 1.2 ×10⁵ L

Initial pressure = 1 atm

Initial temperature = 150 °C (150 +273 = 423 K)

Final temperature = 30°C (30+273 = 303 K)

Final volume = ?

Final pressure = 150 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 1.0 atm × 1.2 ×10⁵ L × 303 K / 423 K × 150 atm

V₂ = 363.6×10⁵ L atm .L. K / 63450 K.atm

V₂ = 0.0057×10⁵ L

V₂ = 570 L

Answer:

Explanation:

when dissolved in water, dissociates into ions, including hydrogen ions. According to Arrhenius, an acid can be defined as a material that increases the concentration of hydrogen ions in water.

Arrhenius acid is that acid when dissolve in water, dissociate into ions and give hydrogen ions H+.

An Arrhenius acid is a molecule that donates an H+ in solution when dissolved in water. To put it simply, a proton donor.

The key to identifying an Arrhenius acid is to look for a molecule that begins with the letter H and contains an oxygen or halogen.

Thus, the Arrhenius acid is that acid when dissolve in water, dissociate into ions and give hydrogen ions H+.

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The picture above shows the water cycle. In the water cycle, water travels from the land to the sky and back again. Water leaves the ocean through Evaporation and returns to the ocean through Precipitation and run-off.

Thank You ☺️ ☺️.

Answer:

A

Explanation:

Brainiest

Remember do it today start now don’t wait

Answer:

These predictions are likely to be valid and should be needed.

Explanation:

Meteorologist made predictions about weather of a particular area on the data they received from the satellite. Meteorology is a branch of science in which we study about the atmosphere. It is mainly used for the forecasting of weather and meteorologists are those people or scientists who study the weather and research on different scales or instruments of weather.