How many grams of oxygen are there in 45.7 grams of Ba(NO2),?

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23-03-2021
Chemistry

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How many grams of oxygen are there in 45.7 grams of Ba(NO2),?

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21ahmedfa 21ahmedfa · Answer 1 · 2021-03-24T01:17:06+01:00

I’m assuming you mean barium nitrite, Ba(NO2)2.

First convert grams of Ba(NO2)2 to moles using the molar mass of Ba(NO2)2. Then use the mole ratio of 4 moles of oxygen per 1 mole of Ba(NO2)2 to convert to moles of oxygen. Then use the molar mass of oxygen to convert to grams of oxygen.

45.7 g Ba(NO2)2 • 1 mol Ba(NO2)2 / 229.35 g Ba(NO2)2 • 4 mol O / 1 mol Ba(NO2)2 • 16.0 g O / 1 mol O = 12.8 g oxygen