Question

What is the mass of the solute in 750 mL of 0. 132 mol/L potassium carbonate?

Answer 1

mol = 0.75 L(750 ml) x 0.132 mol/L =0.099 mol

potassium carbonate: K₂CO₃ ⇒ MM = 138,205 g/mol

mass = 0.099 x 138.205 = 13.68 g