You are given powdered sodium sulfate, how will you prepare 100 mL of a 1M solution of sodium sulfate? Your solvent is 0...

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You are given powdered sodium sulfate, how will you prepare 100 mL of a 1M solution of sodium sulfate? Your solvent is 0...

You are given powdered sodium sulfate, how will you prepare 100 mL of a 1M solution of sodium sulfate? Your solvent is 0.1 M acetate buffer.

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Answer 1

Answer #1

Na₂SO₄ is the formula of sodium sulfate.

molar mass of sodium sulfate is (2*23)+32+(4*16)=142 g/mol.

molarity is the no. of moles per liter of solutions.

and 142 g of sodium sulfate means 1 moles sodium sulfate. 1 M( molarity) of sodium sulfate means 1 mole of sodium sulfate dissolve in 1 liter of solution.

1000 mL of solution dissolve 142 g of sodium sulfate to form 1 M of sodium sulfate

then 1 mL of solution dissolve 142/1000 g of sodium sulfate to form 1 M of sodium sulfate

100 mL of solution will dissolve 142*100/1000 g of sodium sulfate to form 1 M of sodium sulfate.

=14.2 g of sodium sulfate form 1 M of sodium sulfate.

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Answer 2

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You are given powdered sodium sulfate, how will you prepare 100 mL of a 1M solution of sodium sulfate? Your solvent is 0...