Question

A chemist weighed out 49.0 g of calcium. Calculate the number of moles of calcium she weighed out. Be sure your answer has the correct number of significant digits

Answer 1

Answer:

1.22 mol Ca

Explanation:

Molar mass (Ca)=40.1 g/mol

49.0 g* 1 mol/40.1 g ≈ 1.22 mol Ca