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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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Knowledge Check

  • The mass of sodium in 11.7 g of sodium chloride is

    A
    2.3g
    B
    4.6g
    C
    6.9g
    D
    7.1g

  • The molarity of the solution obtained by dissolving 2.5 g of NaCl in 100 ml of water is

    A
    0.00428
    B
    428
    C
    0.428
    D
    0.0428

  • A solution made by dissolving 40 g NaOH 1000 g of H_(2)O is

    A
    1 molar
    B
    1 normal
    C
    1 molal
    D
    None of the above

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