Copper(II) bromide is used as a wood preservative. What mass of CuBr₂ is needed to prepare 750.0 mL of a 1.25 M solution? A) 134 g B) 209 g C) 372 g D) 750 g E) 938 g

Question

Quizplus · Accepted Answer

To find the mass of CuBr2 needed, use the formula: mass = molarity × volume × molar mass. The molar mass of CuBr2 is approximately 223.55 g/mol. For a 1.25 M solution in 750.0 mL (0.750 L), the mass is 1.25 mol/L × 0.750 L × 223.55 g/mol = 209 g.

Copper(II) Bromide Is Used as a Wood Preservative