Question

Mgcl2 has a formula weight of 95g.Mol-1. How would you make 10 ml of a 0.1 m solution of mgcl2.

Answer 1

moles = conc x vol

moles = 0.1 x 0.010 = 0.001 moles

mass = moles x molar mass

mass = 0.001 moles x 95 = 0.095 g