What is the number of moles in 15.0 g of AsH3
Responses
5 mol
5 mol
0.44 mol
0.44 mol
0.19 mol
0.19 mol
2 mol
To find the number of moles in a substance, you need to use the formula:
moles = mass (g) / molar mass (g/mol)
The molar mass of AsH3 (arsine) is 77.945 g/mol.
Plugging in the values:
moles = 15.0 g / 77.945 g/mol
moles = 0.192 mol
Therefore, the number of moles in 15.0 g of AsH3 is 0.192 mol.