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11 Nov 2019
(a) How many grams of CaCl2 are needed to make 356.9 g of a solution that is 35.0% (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 (ww). Number g CaCl, How many grams of water are needed to make this solution? Number (b) what is the volume percent % (v/v) of an alcohol solution made by dissolving 137 mL of isopropyl alcohol in 745 mL of water? (Assume that volumes are additive.) Number % (v/v) (c) The mass of solute per 100 mL of solution is abbreviated as % (m/v). (The abbreviation % (ww) is also common.) How many grams of sucrose are needed to make 835 mL of a 35.0% (w/v) sucrose solution? Number g sucrose
(a) How many grams of CaCl2 are needed to make 356.9 g of a solution that is 35.0% (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 (ww). Number g CaCl, How many grams of water are needed to make this solution? Number (b) what is the volume percent % (v/v) of an alcohol solution made by dissolving 137 mL of isopropyl alcohol in 745 mL of water? (Assume that volumes are additive.) Number % (v/v) (c) The mass of solute per 100 mL of solution is abbreviated as % (m/v). (The abbreviation % (ww) is also common.) How many grams of sucrose are needed to make 835 mL of a 35.0% (w/v) sucrose solution? Number g sucrose
Elin HesselLv2
27 Jul 2019