One mole of nitrous acid (HNO2) contains 1.00 gram of hydrogen (H), 14.0 grams of nitrogen (N), and 32.0 grams of oxygen (O). What is the percent composition of nitrogen in nitrous acid?

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asked Jan 3, 2018 78.3k views

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One mole of nitrous acid (HNO2) contains 1.00 gram of hydrogen (H), 14.0 grams of nitrogen (N), and 32.0 grams of oxygen (O). What is the percent composition of nitrogen in nitrous acid?

Chemistry
high-school

Nicke Manarin asked

by Nicke Manarin

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mass % of nitrogen = mass of nitrogen*100 / total mass

= 14*100 / (1+ 14 + 32)

= 14*100 / 47
= 29.7 %

Dmitry Nogin answered Jan 9, 2018

by Dmitry Nogin

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