# chemistry

Calculate the mass CaCl2 · 6 H2O needed to
prepare of 0.123 m CaCl2(aq), by using 373 g
of water.

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

posted by bobpursley

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