Question

find the mass of Na2co3 present in 100ml of 3M solution​

Answer 1

the answer is

=M=no. of moles of solute /volume of solution in L

No of moles = M*volume of solution in L

=3*0.1 (1L=1000ml)

=0.3 moles

Wt. Of Na2CO3 =no of moles * molecular mass of Na2CO3

=0.3 *106

=31.8 g

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