Calculate the mass CaCl2 · 6 H2O needed to

Question

prepare of 0.123 m CaCl2(aq), by using 373 g
of water.
Answer in units of g.

Answer 1

molality=moles/kgwater
molality=mass/(kgwater*molmass)
mass=molality*molmass*kgwater
= .123*219.0757*.373