Re chemistry

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What are the concentrations in mass of the following solutions:

a) a 200mL aqueous solution containing 4.26g sodium solfate.

b) a 2.00 L aqueous solution containing 107.0g ammonium chloride NH4Cl.

Plz can give me someone the answers for BOTH and the steps how you did it plzzzzzz :)

  • Re chemistry -

    Don't we need the density? I don't know the mass of 200 mL of solution.

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