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ohaa [14]
3 years ago
10

A 2.00-L sample of was collected over water at a total pressure of 750. torr and 22 °C. When the was dried (water vapor removed)

, the gas had a volume of 1.95 L at 22 °C and 750. torr. Calculate the vapor pressure of water at 22 °C.
Chemistry
1 answer:
9966 [12]3 years ago
7 0

Answer : The vapor pressure of water at 22^oC is 1.01 atm.

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure = ?

P_2 = final pressure = 750 torr = 0.987 atm    (1 atm = 760 torr)

V_1 = initial volume = 1.95 L

V_2 = final volume =  2.00 L

Now put all the given values in the above equation, we get:

P_1\times 1.95L=0.987atm\times 2.00L

P_1=1.01atm

Therefore, the vapor pressure of water at 22^oC is 1.01 atm.

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Answer:

sp3d

Explanation:

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2 years ago
A gas mixture is composed of three different gases. The first gas in the mixture has a pressure of 0.35 atm. The second gas in t
riadik2000 [5.3K]

Answer:

1.20atm

Explanation:

Given parameters:

Partial pressure of gas 1 = 0.35atm

Partial pressure of gas 2  = 0.20atm

Partial pressure of gas 3  = 0.65atm

Unknown:

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To solve this problem, we need to recall and understand the Dalton's law of partial pressure.

Dalton's law of partial pressure states that "the total pressure of a mixture of gases is equal to the sum of the partial pressure of the constituent gases".

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The partial pressure is the pressure a gas would exert if it alone occupied the volume of the gas mixture.

     

Now we substitute;

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8 0
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Answer:

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Explanation:

Energy comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few.  

The answer could be It is a well known fact that energy can neither be created and nor be destroyed but can be transformed from one form to another.

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What is the significance of wanting to know what the pH of a solution is?
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