deadlyskull1245 deadlyskull1245

16-02-2022
Chemistry

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What is the % by mass of oxygen in Mg(NO3)2 ?

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aaronsflyingfox aaronsflyingfox

16-02-2022

Answer:

72.71 %

Explanation:

For oxygen: mass % O = (mass of 1 mol of oxygen/mass of 1 mol of CO2) x 100. mass % O = (32.00 g / 44.01 g) x 100. mass % O = 72.71 %

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