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Which of the following statement is//are...

Which of the following statement `is//are` correct?
`20.0 mL` of `6.0 M HCl` is mixed with `50.0 mL` of `2.0 M Ba(OH)_(2)`, and `30 mL` of water is added.

A

`0.10 M`

B

`0.40 M`

C

`0.0050 M`

D

`0.12 M`

Text Solution

Verified by Experts

The correct Answer is:
A
Number of milliequivalents of HCl
`=20xx0.0.050xx1=1`
Number of milliequivalents of `Ba(OH)_(2)`
`=2xx30xx0.10=6`
`[OH^(-)]` of final solution
Milliequivalents of `Ba(OH)_(2)`
`=("- milliequivalents of HCl")/("Total volume")=(6-1)/(50)`
`= 0.1 M`
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