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An aqueous solution that is 3.5% sodium ...

An aqueous solution that is `3.5%` sodium chloride by mass can be prepared by dissolving `3.5g` of `NaCl` in `.........g` of `H_(2) O`

A

`100`

B

`103.5`

C

`96.5`

D

less than `100`

Text Solution

Verified by Experts

The correct Answer is:
C
`3.5% NaCl` by mass contains `3.5g NaCl` in `100.0g` of solution. Thus,
Mass of `H_(2) O` = (Mass of solution) - (mass of solute)
`= (100.0 - 3.5)g = 96.5g`
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