The concentration of a 300.0-mL sample of a calcium chloride solution is 0.256 M. What is the mass of the solute?

Question

Quizplus · Accepted Answer

To find the mass of the solute, first calculate the number of moles of calcium chloride (CaCl2) using the formula: moles = concentration (M) × volume (L). Then, convert moles to grams using the molar mass of CaCl2 (110.98 g/mol). Calculation: 0.256 M × 0.300 L = 0.0768 moles; 0.0768 moles × 110.98 g/mol = 8.52 g.

The Concentration of a 300