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2.5 litres of 1M NaOH solution is mixed ...

2.5 litres of 1M NaOH solution is mixed with 3.0 litres of 0.5 M NaOH solution. The molarity of resulting solution is :

A

0.80 M

B

1.0 M

C

0.73 M

D

0.50 M

Text Solution

Verified by Experts

The correct Answer is:
C
`M_(1)V_(1)+M_(2)V_(2)+M_(3)V_(3)`
or `M_(3)=(M_(1)V_(1)+M_(3)V_(3))/(V_(3))`
`=(1xx2.5+0.5xx3.0)/(5.5)=0.73M`
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