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 mol^–1

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Solution

0.375 M aqueous solution of sodium acetate

≡ 1000 mL of solution containing 0.375 moles of sodium acetate

∴Number of moles of sodium acetate in 500 mL

Molar mass of sodium acetate = 82.0245 g mole^–1 (Given)

∴ Required mass of sodium acetate = (82.0245 g mol^–1) (0.1875 mole)

= 15.38 g

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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 mol^–1

Consider the three solutions of 1M concentration

I) Sodium acetate (

{C H}_{3} C O O N a

)

II) Acetic acid + sodium acetate (

{C H}_{3} C O O H + {C H}_{3} C O O N a

)

III) Acetic acid (

{C H}_{3} C O O H

)

The pH of these solutions will lie in the following sequence

Q. What happens to the pH of

500 m L

of a solution that is

0.1

molar in sodium acetate and

0.1

molar in acetic acid when

10 m L

0.1 M

sodium hydroxide is added?

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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 mol–1

0.375 M aqueous solution of sodium acetate ≡ 1000 mL of solution containing 0.375 moles of sodium acetate ∴Number of moles of sodium acetate in 500 mL Molar mass of sodium acetate = 82.0245 g mole–1 (Given) ∴ Required mass of sodium acetate = (82.0245 g mol–1) (0.1875 mole) = 15.38 g

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 mol^–1