1.

5.3 g of sodium carbonate have been dissolved in 500 mL of the solution. What is the molarity of the solution ?

Answer»


Solution :MOLARITY of solution (M) `= (("Mass of "Na_(2)CO_(3))/("Molecular mass of "Na_(2)CO_(3)))/("Volume of solution in mL"/(1000))=((5.3g))/(("106 g MOL"^(-1))XX("0.5 L"))`
`="0.1 mol L"^(-1)=0.1M`


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