How many grams of sucrose are in 1.5kg of a 10.5% (by mass) solution of sucrose?

Answer 1

10.5% w/w means 10.5 g sucrose in 100 g solution. So how much is in 1,500 g solution?
(g solute/g solution)*100 = %
(g solute/1500)*100 = 10.5
Solve for g solute.

Answer 2

2. How many grams of sucrose would be needed to prepare 100.mL of a solution of 0.10 M sucrose? Show your calculations.