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Question

Calculate the mass of sodium acetate [CH3COONa] required to make 500 mL of 0.375 molar aqueous solution. Molar mass of sodium acetate is 82.0245 g mol1.

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Solution

0.375M solution means 0.375 moles in 1 L of solution.

1000mL of solution contains 0.375 moles

1mL of solution0.3751000moles

500mL of solution0.3751000×500
0.1875

No. of moles=MassMolar Mass

0.1875mol=Mass82.0245 gmol1

Mass of the compound = 15.37 g.

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