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Misha Larkins [42]
3 years ago
9

Determine the freezing point of a 3.70 m solution of phenol in benzene. Benzene has a freezing point of 5.5°C and a freezing poi

nt depression constant of 5.12°C•kg/mol.
Which equation should you use?
Chemistry
2 answers:
bearhunter [10]3 years ago
7 0

Answer-ΔTf = Kfm

Explan

olganol [36]3 years ago
7 0

all 3 answers for edge

b

18.9

-13.4

Explanation:

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Ms. Crawford gave the following instructions to her science class: • Place an empty water bottle on the table and remove the lid
ehidna [41]
A) chemical - gas produced
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8 0
3 years ago
Read 2 more answers
A 0.216 g sample of carbon dioxide, CO2, has a volume of 507 mL and a pressure of 470 mmHg. What is the temperature of the gas i
Gala2k [10]

Answer:

The temperature of the gas is 876.69 Kelvin

Explanation:

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas.

In this case:

  • P= 470 mmHg
  • V= 570 mL= 0.570 L
  • n= 0.216 g= 0.0049 moles (being the molar mass of carbon dioxide is 44 g/mole)
  • R= 62.36367 \frac{mmHg*L}{mol*K}
  • T=?

Replacing:

470 mmHg*0.570 L= 0.0049 moles* 62.36367 \frac{mmHg*L}{mol*K} *T

Solving:

T=\frac{470 mmHg*0.570 L}{0.0049 moles* 62.36367\frac{mmHg*L}{mol*K} }

T= 876.69 K

<em><u>The temperature of the gas is 876.69 Kelvin</u></em>

6 0
3 years ago
A + B = AB
Ahat [919]

The greatest amount of AB would be produced if the equilibrium constant of the reaction is equal to 1.0 \;X \;10^5. Hence, option D is correct.

<h3>What is an equilibrium constant?</h3>

A number that expresses the relationship between the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a given temperature.

The equilibrium constant expression is a mathematical relationship that shows how the concentrations of the products vary with the concentration of the reactants.

If the value of K is greater than 1, the products in the reaction are favoured. If the value of K is less than 1, the reactants in the reaction are favoured.

Hence, option D is correct.

Learn more about the equilibrium constant here:

brainly.com/question/10038290

#SPJ1

7 0
2 years ago
Select the correct answer. Which equation, when solved, gives 8 for the value of x?
lakkis [162]

Where are the answer choices

8 0
3 years ago
If you burn 28.2g of hydrogen and produce 252g of water, how much oxygen reacted
andrey2020 [161]
15% oxygen is reacted
6 0
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