Question

When 50 ml of 2.00m hcl 100 ml of 1.00m hcl and 100 ml of 0.500 m hcl are mixed together the resulting hcl concentration of solution is

Answer 1

20 ml of 0.5M HCL is mixed with 30 ml of 0.3 M HCL. What is the molarity of the resulting solution?

We know that,

M1V1 + M2V2 = M3V(1+2) {where M denotes molarity and V denotes volume}

as, sum of number of moles in individual solution is equal to number of moles in the mixture.

0.5(20) + 0.3(30) = M3(20+30)

19/50 = M3

0.38=M3

hence the molarity of the resulting solution is 0.38

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