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Question:

Calculate the mass of sodium acetate (CH3COONa) required to make 500ml of 0.375 molar aqueous solution. Molar mass of sodium acetate is 82.0245 g/mol.

Solution:

The mass of sodium acetate = volume in mL / 1000 mL/L × molarity × molar mass = 500 / 1000 × 0.375 × 82.0245 = 15.38 g.