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To a 4L of 0.2M solution of NaOH, 2L of ...

To a 4L of 0.2M solution of `NaOH, 2L` of `0.5M NaOH` are added. The molarity of resulting solution is

A

0.9M

B

0.3M

C

1.8M

D

0.18M

Text Solution

Verified by Experts

The correct Answer is:
B
`M_(1) V_(1) + M_(2) V_(2)=M_(3) V_(3)` (Mixture)
`4 xx 0.2 + 2 xx 0.5 = M_(3) xx 6`
or 6 `M_(3)=1.8` or `M_(3)=0.3 `
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