an unknown gas is found to consist of 10.48 g of nitrogen and 11.96 g if oxygen. what is the percentage composition of this gas? select one: a. 28.6% n, 71.4 % o b. 46.7%n, 53.3%o c. 53.3% n, 46.7% o d. 74.5% n, 25.5% o

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26-10-2022
Chemistry

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an unknown gas is found to consist of 10.48 g of nitrogen and 11.96 g if oxygen. what is the percentage composition of this gas? select one: a. 28.6% n, 71.4 % o b. 46.7%n, 53.3%o c. 53.3% n, 46.7% o d. 74.5% n, 25.5% o

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QWTiffany QWTiffany · Answer 1 · 2022-10-29T07:03:03-04:00

The percentage composition of unknown gas containing nitrogen and oxygen is b. 46.7%N, 53.3%O.

Assuming the gas contains one atom of nitrogen and one atom of oxygen. So, to calculate the percentage composition of this gas, the formula to be used is -

Percentage composition = mass of atom ÷ total mass of gas × 100

Total mass of gas = mass of nitrogen + mass of oxygen

Total mass of gas = 10.48 + 11.96

Performing addition

Total mass of gas = 22.44 grams

Percentage of nitrogen = 10.48÷22.44 × 100

Percentage of nitrogen = 46.7%

Percentage of oxygen = 11.96÷22.44 × 100

Percentage of oxygen = 53.3%

Thus, the percentage composition of gas is b. 46.7%N, 53.3%O.

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