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)938 g E) 1 kg

Question

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)938 g E)> 1 kg

Quizplus · Accepted Answer

To find the mass of CuBr2 needed to prepare a 750.0 mL (0.750 L) solution of 1.25 M concentration, use the formula: mass = molarity (M) × volume (L) × molar mass (g/mol). The molar mass of CuBr2 is approximately 223.36 g/mol. So, mass = 1.25 mol/L × 0.750 L × 223.36 g/mol = 209 g.

Copper(II) Bromide Is Used as a Wood Preservative