1 year ago

What percentage of oxygen is attributed fossil fuel combustion

Chemistry

1 answer:

Oxana [17]1 year ago

6 0

Answer:

C. 4%

Explanation:

The answer is 4%

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2 years ago

A flask with a volume of 3.16 l contains 9.33 grams of an unknown gas at 32.0°c and 1.00 atm. What is the molar mass of the gas?

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For this question we have to keep in mind that the unknown substance is a gas, therefore we can use the ideal gas law:

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So, we can solve for "n" (moles):

$1~atm*3.16~L~=~n*0.082~\frac{atm*L}{mol*K}*305.15~K$

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Now, we have to remember that the molar mass value has "g/mol" units. We already have the grams (9.33 g), so we have to divide by the moles:

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