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Question

How many moles of CO2 will be produced when 10 mol NaHCO3 is decomposed?
2NaHCO3 Na2CO3 + H2O + CO2

A
5
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B
6
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C
4
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D
10
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Solution

The correct option is A 5
2NaHCO3 Na2CO3 + H2O + CO2
From the balanced equation above, we see that 2 moles of NaHCO3 produces 1 mol of CO2.
When 10 moles of NaHCO3 decomposes, 5 mol CO2 will be formed.

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