20.352 mL of chlorine under a pressure of 680. mm Hg are
placed in a container
under a pressure of 1210 mm Hg. The temperature remains
constant at 296 K.
What is the volume of the container in liters?​

Answer:

The pressure of the solution is 144 torr

Explanation:

Step 1: Data given

Number of moles of a nonvolatile solute = 0.5 moles

Mass of ethanol = 300 grams

Molar mass of ethanol = 46.07 g/mol

Temperature = 40°C

The vapor pressure of ethanol = 134 torr

Step 2: Calculate moles ethanol

Moles ethanol = mass ethanol / molar mass ethanol

Moles ethanol = 300 grams / 46.07 g/mol

Moles ethanol = 6.51 moles

Step 3: Calculate the total moles

Total moles = 0.5 moles + 6.51 moles

Total moles = 7.01 moles

Step 4: Calculate mol fraction

Mol fraction = moles / total moles

Mol fraction ethanol = 6.51 / 7.01 moles

Mol fraction ethanol = 0.93

Mol fraction nonvolatile solute

0.5 moles / 7.01 moles = 0.07

Step 5: Calculate Total pressure of the solution

Vapor pressure ethanol = mol fraction * total pressure solution

134 torr = 0.93 * total pressure solution

Total pressure solution = 134 torr/ 0.93

Total pressure solution = 144 torr

The pressure of the solution is 144 torr

Answer:

17.08 moles of manganese dioxide

Explanation:

From the balanced reaction equation;

Zn + 2 MnO2 + 1 H2O → Zn(OH)2 + Mn2O3 (notice that I did not put 1 as a stoichiometric coefficient. It is expected that any specie written without a coefficient should have a coefficient of 1)

It is clear from the reaction equation that 2 moles of manganese dioxide produced 1 mole of zinc II hydroxide

Hence x moles of manganese dioxide will produce 8.54 moles of zinc II hydroxide

x= 2× 8.54/1

x= 17.08 moles of manganese dioxide

Answer:

The answer to your question is  V2 = 2.5 l

Explanation:

Data

Volume 1 = V1 = 3 l

Temperature 1 = T1 = 78°C

Volume 2 = V2 = ?

Temperature 2 = T2 = 20°C    Standard temperature = 20°C

Process

To solve this problem use Charles' law

            V1/T1 = V2/T2

-Solve for V2

            V2 = V1T2 / T1

1.- Convert the temperature to °K

T1 = 78 + 273 = 352°K

T2 = 20 + 273 = 293°K

2.- Substitution

           V2 = (3 x 293) / 352

3.- Simplification

           V2 = 879/352

4.- Result

           V2 = 2.5 l

To determine the Ksp of Ag2CrO4 at 25 °C, you would first need to determine the standard reduction potentials and use the free energy equation ∆G° = -nFE°. Next, use the relationship between the equilibrium constant and ∆G° given by ∆G° = -RT ln Ksp to find the Ksp. However, without the necessary information, a precise value cannot be given.

To find the solubility product constant (Ksp) of Ag2CrO4 at 25 °C given the provided standard reduction potentials, we would need to look at the relationship between the equilibrium constant, K, and ∆G° (standard free energy). The equation ∆G° = -RT ln K is used in these cases, where R is the gas constant, T is the temperature in Kelvin, and K is the equilibrium constant that we're interested in. Note that in order to use this equation, we first need to calculate ∆G° using the given reduction potentials and the equation ∆G° = -nFE°, where n is the number of electrons transferred, F is Faraday's constant, and E° is the standard reduction potential.

For example, if the ∆G° for the reaction came out to be around 167.9 kJ as per the details provided, and we can use ∆G° = -RT ln Ksp to find the Ksp. However, without the complete standard reduction potentials, a precise Ksp value for Ag2CrO4 at 25 °C cannot be provided here.

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Answer:

Concentration of the resulting solution = 2.04 M

Explanation:

Data:

M1 = 5.10 M

V1 = 200.0 mL

V2 = 500.0 mL

M2 = ?

By modifying the volume of solution, keeping the amount of solute constant, the concentration changes. To perform the calculations, the equation will be:

[tex]M1*V1=M2*V2[/tex]

Where M1 is the initial concentration of the solution, M2 the final concentration and V is the value of the volumes of the initial and final solution.

Clearing the value of M2 from the equation and replacing the values ​​we have:

[tex]M2=\frac{M1*V1}{V2} =\frac{5.10M*200mL}{500mL} =2.04M[/tex]

Answer:

2.04M

Explanation:

Using C1V1 = C2V2

where;

C1 =  Concentration of stock solution  = 5.10M

C2 = Final concentration of new solution = x

V1 = Volume of stock solution = 200ml

V2 = Final volume of new solution = 500ml

Inserting the values into the formulae, we have;

5.10 * 200 = x * 500

x = (5.10 * 200) / 500

x = 2.04M

Answer:

pH = 4.17

Explanation:

According to the molar concentration you stated, pH of the solution is: 4.17

Remember that pH = - log [H⁺]

and [H⁺] = 10^-pH

When:

pH > 7 →  Basic solution

pH = 7 → Neutral solution

pH < 7 → Acid solution

Answer:

False

Explanation:

Genes are found inside chromosomes and chromosomes are in cells. So technically genes are in cells

Final answer:

Nuclear fusion is a reaction in which two nuclei combine to form a larger nucleus, releasing energy. It is the process that powers the sun and stars.

Explanation:

Nuclear fusion is a reaction in which two nuclei are combined to form a larger nucleus, releasing energy. It is the process that powers the sun and other stars. In the sun, hydrogen nuclei combine to form helium, releasing a significant amount of energy.

Using Charles's Law, which states that the volume of a gas is directly proportional to its temperature in Kelvin with constant pressure, the new volume of gas when temperature is decreased from 1500 K to 750 K is 5.0 liters.

This question is related to the Charles's Law, which states that the volume of a gas is directly proportional to its temperature in Kelvin, assuming that the pressure and the amount of gas remain constant. To solve this problem, we can use the formula V₁/T₁= V₂/T₂ , where V₁ and V₂ are the initial and final volumes, and T₁ and T₂ are the initial and final temperatures in Kelvin, respectively.

Given: V₁ = 10.0 liters, T₁ = 1500 K, T₂ = 750 K
We are solving for V₂.

Using Charles's Law:
V₁/T₁= V₂/T₂
(10.0 L) / (1500 K) = V2 / (750 K)
V₂ = (10.0 L) / 2
V₂= 5.0 liters

The correct answer is that the new volume of the gas when the temperature is decreased to 750 K is 5.0 liters.

Answer:

what is the English translation, id like to help

Explanation:

Answer: Mrs. Salge can make 6 ice cream cones

Explanation:

Mrs. Salge's recipe:

1 cone

1 scoop blue ice cream

2 scoops red ice cream

1 cherry

Now we will find what the limiting ingredient is:

We know she has:

10 cones.    →    10 ice cream cones

12 scoops blue ice cream.    →    12 ice cream cones

12 scoops red ice cream.    →    6 ice cream cones

10 cherries.    →    10 ice cream cones

The red ice cream is the limiting factor. Mrs. Salge can make 6 ice cream cones.

Mrs. Salge can make a total of 6 ice cream cones with her available ingredients, as the red ice cream scoops are the limiting factor.

To determine how many ice cream cones Mrs. Salge can make given her resources, we must find out which ingredient limits the number of cones she can make. Her recipe requires one cone, one scoop of blue ice cream, two scoops of red ice cream, and one cherry for each ice cream cone. Therefore, we will check each ingredient to see which will run out first if she keeps making the ice cream cones as per the recipe.

Since each cone requires 2 scoops of red ice cream, the number of cones she can make will be limited by the red ice cream. With 12 scoops of red ice cream, she can make 6 cones because each cone requires 2 scoops. This is the limiting factor because even though she has 10 cones and 10 cherries, after making 6 cones, she will run out of red ice cream.

Therefore, Mrs. Salge can make a total of 6 ice cream cones with the ingredients available to her before one of the ingredients runs out and prevents her from making more.

Answer:

the femur

Explanation:

a vestigial structure is useless, and a femur bone is not uselsess

Answer:

Pelvic bone of a snake

Explanation:

Answer:

D is the answer

Explanation:

I'm pretty sure a molecular compound doesn't form between 2 non metals

...I think, but I can't remember

The incorrect statement is that in an ionic compound, a metal and a polyatomic ion form a compound, and electrons are shared. In ionic compounds, electrons are transferred, not shared, resulting in the formation of cations and anions.

The statement that is NOT correct is: b) In an ionic compound, a metal and a polyatomic ion form a compound, and electrons are shared. This statement is incorrect because in an ionic compound, electrons are not shared but are transferred from the metal to the non-metal or to the polyatomic ion, forming cations and anions.

In ionic compounds, metals lose valence electrons to form positively charged ions, while nonmetals gain those electrons to form negatively charged ions, both achieving a full outer shell as per the octet rule. Covalent compounds, on the other hand, form when non-metals share electrons, producing molecular compounds.

Therefore, the correct statements are:

a) In an ionic compound, a metal and a non-metal form a compound, and electrons are transferred from one to the other.

c) In both ionic and molecular compounds, valence electrons take part in bonding.

d) In a molecular compound, a non-metal and a non-metal form a compound, and electrons are shared.

The critical concentration is key in determining whether actin monomers will form filaments or disassemble. Above this concentration, polymerization of actin occurs, while below it, monomers dissociate. A steady state is reached at the critical concentration, essential for cell motility and structure.

The critical concentration is the threshold at which actin filaments will either form or dissociate. In the presence of actin monomers above this concentration, the actin will polymerize into filaments; below it, the filaments will disassemble into monomers. At the critical concentration, there is a dynamic state where the rates of polymerization and depolymerization are equal, leading to a steady state in the reaction containing F-actin (filamentous actin).

Actin dynamics are essential for various cellular functions, including muscle contraction and cell motility. The polymerization and depolymerization processes are regulated by ATP-binding and hydrolysis, with critical concentration playing a crucial role in achieving a steady state of F-actin within cells. This balance affects the cell's ability to exert forces on itself and its environment, a key aspect of cellular motility and structure.

Answer:

There are 40 electrons in one atom of Zirconium.

Explanation:

Note: The word is not zicronium, it is Zirconium.

Answer:

Name Zirconium

Atomic Mass 91.224 atomic mass units

Number of Protons 40

Number of Neutrons 51

Number of Electrons 40

Explanation:

Answer:

The new temperature of the gas is 200  Celsius degrees.

Explanation:

Charles's Law consists of the relationship between the volume and temperature of a certain amount of ideal gas, which is maintained at a constant pressure, by means of a proportionality constant that is applied directly.

In this way, Charles's law is a law that says that the quotient that exists between volume and temperature will always have the same value:

[tex]\frac{V}{T} =k[/tex]

Assuming you have a certain volume of gas V1 that is at a temperature T1 at the beginning of the experiment, if you vary the volume of gas to a new value V2, then the temperature will change to T2, and it will hold:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

In this case:

Replacing:

[tex]\frac{20}{100} =\frac{40}{T2}[/tex]

Solving:

[tex]T2=\frac{40}{\frac{20}{100} }[/tex]

T2=200 °C

The new temperature of the gas is 200  Celsius degrees.

Answer:

473°C

Explanation:

We'll begin by analysing what was given from the question. This is illustrated below:

Initial temperature (T1) = 100°C

Initial volume (V1) = 20 L

Final volume (V2) = 40 L

Final temperature (T2) =?

Next, we shall be converting the temperature in celsius to Kelvin temperature. This is illustrated below:

Temperature (Kelvin) = temperature (celsius) + 273

Initial temperature (T1) = 100°C = 100°C + 273 = 373K

Next, we shall obtain the new temperature by applying the Charles' law equation. This is illustrated below:

V1/T1 = V2/T2

20/373 = 40/T2

Cross multiply to express in linear form

20 x T2 = 373 x 40

Divide both side by 20

T2 = (373 x 40) /20

T2 = 746K

Next, we shall be converting the new temperature obtained from Kelvin to celsius temperature. This is illustrated below:

Temperature (celsius) = Temperature (Kelvin) - 273

Temperature (celsius) = 746K - 273

Temperature (celsius) = 473°C

Answer:

D All of these

Explanation:

hope this helped

Answer : The molarity of a solution is, 0.0337 M

Explanation : Given,

Mass of [tex]MgI_2[/tex] = 468 mg  = 0.468 g   (1 mg = 0.001 g)

Volume of solution = 50.0 mL

Molar mass of [tex]MgI_2[/tex] = 278 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 }MgI_2\times 1000}{\text{Molar mass of }MgI_2\times \text{Volume of solution (in mL)}}[/tex]

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

[tex]\text{Molarity}=\frac{0.468g\times 1000}{278g/mole\times 50.0mL}=0.0337mole/L=0.0337M[/tex]

Therefore, the molarity of a solution is, 0.0337 M

The molarity of the solution formed is 0.0337 M

From the question,

We are to determine the molarity of the solution formed.

First, we will determine the number of moles MgI₂ dissolved

Mass of MgI₂ dissolved = 468 mg = 0.468 g

From the formula

[tex]Number\ of\ moles = \frac{Mass}{Molar\ mass}[/tex]

Molar mass of MgI₂ = 278.1139 g/mol

∴ Number of moles of MgI₂ present = [tex]\frac{0.468}{278.1139}[/tex]

Number of moles of MgI₂ present = 0.001682764 mole

Now,

For the molarity of the solution formed,

Using the formula

[tex]Molarity = \frac{Number\ of\ moles}{Volume}[/tex]

Volume of the solution = 50.0 mL = 0.050 L

∴ Molarity of the solution = [tex]\frac{0.001682764}{0.050}[/tex]

Molarity of the solution = 0.033655

Molarity of the solution ≅ 0.0337 M

Hence, the molarity of the solution formed is 0.0337 M

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Answer:

IPM is also known as Integrated Pest management.

IPM is an ecosystem-based strategy that deals with long-term prevention of pests or their damage through a combination of techniques such as biological control, habitat manipulation, modification of cultural practices, and use of resistant varieties.

These factors are very important in protecting the environment and it prevents some crops and animals from going into extinction.

The process of IPM involves prevention, monitoring and intervening as an environmental solution.

IPM stands for 'Integrated Pest management', it is an  ecosystem-based strategy.

IPM works on three main aspects and that are:

Hence, the process of IPM raised out as an environmental solution.

To learn more about IPM, visit the below link:

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Final answer:

Isotopes are versions of an element with the same number of protons but different numbers of neutrons, such as carbon-12 and carbon-14. To find the number of protons, neutrons, and electrons in an atom, you need the atomic number and mass number. Radioactive isotopes decay to more stable forms, releasing particles and energy.

Explanation:

Isotopes are different forms of an element that have the same number of protons but a different number of neutrons. For example, whereas carbon-12 has six protons and six neutrons, carbon-14 has six protons and eight neutrons. Both isotopes of carbon have six electrons since the number of electrons is defined by the number of protons to maintain a neutral charge. Radioactive isotopes, or radioisotopes, may emit particles and energy, transforming into more stable forms and losing potential energy in the process.

To determine the number of protons, neutrons, and electrons in an atom with a given mass number, you first need to know the element's atomic number (number of protons) and mass number. The atomic number is equal to the number of protons and electrons (in a neutral atom). The number of neutrons can be found by subtracting the atomic number from the atomic mass number. For instance, carbon-14, with an atomic number of 6 and a mass number of 14, has 6 protons, 8 neutrons (14 - 6), and 6 electrons.

Answer:

your answer is either c or d but probably c

Answer: (Hydroelectric plant) gravity pushes water down pipes or canals at high pressure which forces the turbine to turn and generate electricity. In wind power (wind turbines), wind spins the turbine blades, which in turn, spins the magnet.

Explanation:

Final answer:

Wind turbines and hydroelectric plants both convert kinetic energy into electrical energy using turbines and generators. The energy source for wind turbines is moving air, whereas for hydroelectric plants it's the potential energy of water. They differ in the method of capturing and converting this energy into mechanical motion.

Explanation:

The way that a wind turbine works is similar to the way that a hydroelectric plant works in that both convert kinetic energy into electrical energy using turbines and generators. In a hydroelectric plant, water flows from a reservoir, gains kinetic energy, hits the turbine blades, and turns a shaft connected to a generator. The movement of the water thus generates electricity. Similarly, a wind turbine captures kinetic energy from the movement of air. Wind causes the rotor blades to lift and rotate, which turns a shaft also connected to a generator, producing electricity.

However, there are key differences between these two systems. The source of kinetic energy for hydroelectric plants is the potential energy of water due to gravity, while wind turbines rely on the kinetic energy of moving air, driven by solar energy and temperature differences. The methods used to convert this energy into mechanical motion of the turbines also vary, with the wind pushing against turbine blades directly and water being channeled through turbines in a more controlled environment.

In summary, both wind turbines and hydroelectric plants utilize turbines and generators to produce electricity, but the source of their energy and the specifics of their operation differ significantly.

Answer:

Surface area of the reactants

Explanation:

If the reactants say Cu is in the powdered form, it reacts very quickly, otherwise the reaction will be delayed

Answer:

Surface Area and concentration

Explanation:

One of the most important factors that affect the rate of chemical reaction is the surface area of reactants. Surface area of reactants has to do with the number of particles of reactants exposed for reaction. In the reaction;

2AgNO3(aq) + Cu(s) -------> Cu(NO3)2(aq) + 2Ag(s), the most important factors affecting the rate of reaction are surface area of the solid copper metal and the concentration of the silver nitrate solution.

If copper turnings are used, the reaction will proceed faster than when a lump of copper is used. This is the effect of surface area in rate of reaction.

The higher the concentration of the solve nitrate solution, the faster the rate of reaction also. Hence the answer.

Answer:

A white light is apparently colourless light, for example ordinary daylight. It contains all the wavelengths of the visible spectrum at equal intensity.

Answer:

White Light is a light having a mixture of frequencies, being perceived as having no specific colour; such as sunlight.

Explanation:

Answer:

An Omnivore

Explanation: An omnivore is a kind of animal that eats either other animals or plants. Some omnivores will hunt and eat their food, like carnivores, eating herbivores and other omnivores. Some others are scavengers and will eat dead matter. Many will eat eggs from other animals.

Omnivores eat plants, but not all kinds of plants. Unlike herbivores, omnivores can't digest some of the substances in grains or other plants that do not produce fruit. They can eat fruits and vegetables, though. Some of the insect omnivores in this simulation are pollinators, which are very important to the life cycle of some kinds of plants.

Answer:

I know this is old but im just trying to get some points

Explanation:

The answer is an omnivore

Answer:

Solute is Lithium nitrate, and solvent is water.

Explanation:

Lithium nitrate is trigonal crystal which is soluble in water.

Answer:

12 moles Pb(NO₄)₂ needed.

Explanation:

                3Pb(NO₃)₂ +2AlCl₃     => 3PbCl₂ + 2Al(NO₃)₃

Given =>   ? moles      8 moles

from reaction stoichiometry, 2 moles AlCl₃ requires 3 moles Pb(NO₄)₂ then 8 moles AlCl₃ requires 3/2(8) moles of the Pb(NO₄)₂ => 12 moles Pb(NO₄)₂ needed.

Answer:

The new pressure on the gas P2 = 0.10atm

Explanation:

Data;

V1 = 0.084L

P1 = 1.0atm

V2 = 0.785L

P2 = ?

This question is a practical problem where Boyle's law is applied.

According to Boyle's law, the pressure of a fixed mass of gas is inversely proportional to its volume provided that the temperature on the gas remains constant

Mathematically

P = k / v, k = PV

P1*V1 = P2*V2 = P3*V3..........Pn*Vn

P1 * V1 = P2 * V2

Solving for P2,

P2 = (P1 * V1 ) / V2

P2 = (0.084 * 1) / (0.785)

P2 = 0.10atm

The new pressure of the gas is 0.10atm

Final answer:

Using Boyle's Law, we can determine that the pressure inside the vacuum chamber is approximately 0.107 atm when a marshmallow expands from 0.084 L to 0.785 L at constant temperature.

Explanation:

To determine the pressure inside the vacuum chamber where a marshmallow has expanded from 0.084 L to 0.785 L at constant temperature, we can use the gas laws. According to Boyle's Law, at constant temperature for a given mass, the volume of a gas is inversely proportional to the pressure. The formula for Boyle's Law is P1V1 = P2V2, where P denotes pressure and V denotes volume. Using this law, we calculate as follows:

P1V1 = P2V2

1.0 atm × 0.084 L = P2 × 0.785 L

P2 = (1.0 atm × 0.084 L) / 0.785 L

P2 = 0.084 atm / 0.785

P2 = 0.107 atm

Thus, the pressure inside the vacuum chamber is approximately 0.107 atm when the volume of the marshmallow is 0.785 L.

Answer: an air compressor and desk chair.

Explanation:

Final answer:

Two fluid technologies that make use of air are the Bunsen burner and the atomizer, both operating based on entrainment principles to achieve proper combustion or to create a fine mist spray.

Explanation:

The use of air in fluid technologies is demonstrated through various devices that rely on fluid dynamics. Two specific technologies that utilize air are the Bunsen burner and the atomizer. The Bunsen burner uses an adjustable gas nozzle to entrain air, which is necessary for proper combustion. Atomizers employ a squeeze bulb to create a jet of air that entrains small droplets, such as drops of perfume, allowing them to be sprayed as a fine mist.

These technological applications are significant in daily practices and across several industries. The principle at work in both the Bunsen burner and atomizer is the creation of low-pressure areas through increased fluid speed, causing air to be entrained with another fluid or gas for a particular purpose.

Answer: Sunlight.

Explanation:

Photochemical smog is formed when primary pollutants such nitrogen oxides and volatile organic compound (VOC) react with sunlight, forming a brown haze above cities.

Photochemical smog can only occur during the day.

Photochemical smog is formed when primary pollutants such as nitrogen oxides and volatile organic compounds interact with sunlight. The reaction between these pollutants in the presence of sunlight leads to the formation of smog.

Photochemical smog is formed when primary pollutants such as nitrogen oxides (NOx) and volatile organic compounds (VOCs) interact with sunlight. These primary pollutants, which can come from sources like vehicle emissions and industrial processes, undergo chemical reactions in the presence of sunlight to produce secondary pollutants, including ozone. The reaction between NOx and VOCs in the presence of sunlight leads to the formation of photochemical smog, which appears as a brown haze above cities.