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What volume of water must be added to `500 ml NaOH` to make `2%` (w/v) NaOHA. `5000 mL`B. `6000 mL`C. `5500 mL`D. `6500 mL`

Answer» Correct Answer - C
Moles of `NaOH = 0.5 xx 6 = 3` mole
`= 3 xx 40`
`= 120 gm`
`2% ((w)/(v)) NaOH`
`(120)/(V) xx 100 = 2`
`V = 6000 mL`
Volume added `= (6000 - 500) mL`
`= 5500 mL`


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