Answer Happy

1. How many grams of CaCl2CaCl2 are needed to
make 364.4 g364.4 g of a solution that
is 33.5%33.5% (m/m) calcium chloride in water? Note that
mass is not technically the same thing as weight, but (m/m) has the
same meaning as (w/w).
Mass: ____g CaCl2
2. How many grams of water are needed to make
this solution?
Mass: ____g H2O
3. What is the volume percent, % (v/v), of an alcohol
solution made by dissolving 149 mL of isopropyl alcohol
in 733 mL of water? Assume that volumes are
additive.
volume percent: _____% (v/v)
4. The mass of solute per 100 mL of solution is abbreviated
as % (m/v). The abbreviation % (w/v) is also common. How many grams
of sucrose are needed to make 725 mL of a 38.0%
(w/v) sucrose solution?
Mass: _____g sucrose