Answer to Question #82900 in General Chemistry for mariah m

Question

How many moles are in 3.90 g of (NH4)2SO4?
Answer in units of mol.

Answer 1

Answer on Question #82900, Chemistry/ General Chemistry

How many moles are in 3.90 g of (NH4)2SO4? Answer in units of mol.

Solution

Molar mass (NH₄)₂SO₄ : 2(14.01) + 8(1.01) + 32.07 + 4(16.00) = 132.17 g (NH₄)₂SO₄/ mol (NH₄)₂SO₄

n = m/M

n((NH₄)₂SO₄) = 3.90 g /132.17 g/mol = 0.0295 mol

Answer: 0.0295 mol