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37.5 mL of oxygen gas is collected at a pressure of 772 mm Hg. What is it’s volume at 716 mm Hg?

User Aryeh
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1 Answer

5 votes

Answer:

The volume of the gas at 716 mmHg comes out to be 40.43 mL. This problem is solved by using below equation.


\textrm{P}\textrm{V} = \textrm{P'}\textrm{V'} at constant temperature

Step-by-step explanation:

Initial volume of gas = V = 37.5 mL

Initial pressure of gas = P = 772 mmHg

Final pressure of gas = P' = 716 mmHg

Assuming final volume of the gas to be V' mL.


\textrm{P}\textrm{V} = \textrm{P'}\textrm{V'} at constant temperature


\textrm{P}\textrm{V} = \textrm{P'}\textrm{V'} \\772 \textrm{ mmHg} * 37.5 \textrm{ mL} = 716 \textrm{ mmHg} * V' \\\textrm{V}' = 40.43 \textrm{ mL }

Hence, volume of oxygen gas at 716 mmHg is 40.43 mL.

User Argas
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