Calculate the Molarity

Question

Calculate the Molarity of sucrose in mole/l.

If 10g of sucrose is dissolved in enough water to make 500 volume of 500ml

Answer 1

molarity is moles of solute per liter of solution.

Moles of solute = 10 g sucrose/MW sucrose = 10 g/342 g = 0.0292 moles sucrose

volume of solution = 500 ml = 0.5 liters

Molarity = 0.0292 moles/0.5 liters = 0.0585 M = 0.06 M (to 1 significant figure)