Question

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.74.5% N, 25.5% O b.46.7%N, 53.3%Oc.53.3% N, 46.7% O this is answer I put but its incorrect. d28.6% N, 71.4 % O

Answer 1

In this question, we have to determine the percent composition of a gas composed of 10.48 grams of Nitrogen and 11.96 grams of Oxygen. In order to determine the value of percent composition, we first calculate the total mass of the gas:

10.48 + 11.96 = 22.44 grams is the mass of the gas

Now we divide the value of mass of each element to find the percent that corresponds to each element:

10.48/22.44 = 0.4670, or 46.70% for Nitrogen

11.96/22.44 = 0.5330 or 53.30% for Oxygen

The answer will be letter B