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07-06-2020
Chemistry

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The number of moles of O2 in 10.6 grams of Na2CO3:

A. 0.1 moles
B. 0.3 moles
C. 0.2 moles
D. None of these

Explain please

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suusueuususuus suusueuususuus

07-06-2020

The answer is A. 0.1 moles

..........

The molar mass of sodium carbonate Na2CO3 is 106g, so 10.6g is 10.6/106 = 0.1mol.

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