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Chemistry
Karlee Estes
5 December, 06:44
What is the number of moles in 15.0 g AsH3?
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Nobel
5 December, 07:13
0
0.192 mol.
Explanation:
To calculate the no. of moles of a substance (n), we use the relation:
n = mass / molar mass.
mass of AsH₃ = 15.0 g.
molar mass of AsH₃ = 77.95 g/mol.
∴ The number of moles in 15.0 g AsH₃ = mass / molar mass = (15.0 g) / (77.95 g/mol) = 0.192 mol.
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