What mass of mgf2 is contained in 80.85 g of a 22.4% by mass solution of mgf2 in water?

Formula: % by mass = (mass of solute / mass of solution] * 100

dа ta:

mass of solution = 80.85 g

% by mass = 22.4%

Unknown = mass of solute

Solution

% by mass = (mass of solute / mass of solution] * 100 = >

mass of solute = % by mass * mass of solution / 100

mass of solute = 22.4 * 80.85 / 100 = 18.11 g

Answer: 18.11 g