1.

If 500 mL of a 5M solution is diluted to 1500 mL, what will be the molarity of the solution obtained ?

Answer»

1.5M
1.66M
0.017M
1.59M

Solution :For DILUTION, a general formula is
`M_(1)V_(1) = M_(2)V_(2)`
`:.500xx5M = 1500xxM`
`:.M = 5/3 = 1.66M`
Given
`M_(1)=5M`
`V_(1)= 500 mL`
`V_(2) = 1500 mL`
`M_(2)=M`


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