How many moles of NaHCO₃ are present in a 2.00 g sample?

Name: How many moles of NaHCO 3 are present in a 2.00 g sample?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

To calculate the number of moles of NaHCO3 in a sample, we need to use its molar mass. The molar mass of NaHCO3 is:
Na: 22.99 g/mol
H: 1.01 g/mol
C: 12.01 g/mol
O (x3): 16.00 g/mol

Total: 84.01 g/mol

So, in 2.00 g of NaHCO3, there are:
2.00 g / 84.01 g/mol = 0.0238 mol

Therefore, the answer is A, 2.38 × 10^-2 mol.

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