Question

What is the mass of 2.7 x 10^18 molecules of HBr? (molar mass of HBr = 80.912 g/mol)

Answer 1

Answer:3.6 X 10-4 g

Step-by-step explanation:

2.7 X 10^18 X (1 mole / (6.02 X 10^23) X ( 80.912 g / 1 mole) = 3.629 X 10-4 g HBr. If needed to correct Sig Figs 3.6 X 10-4 g HBr