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0.5 g of a substance is dissolved in 2...

0.5 g of a substance is dissolved in 25 g of a solvent calculate the percentage amount of the substance in the solution

Text Solution

Verified by Experts

The correct Answer is:
`1.96`

(1.96): Mass of the substance = 0.5 g Mass of solvent = 25 g
`therefore ` % of substance = `(0.5)/(0.5+ 25) xx 100=1.96`
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Knowledge Check

  • 18 g of sucrose is dissolved in 162 g of water. Calculate the mass percentage of solution:

    A
    `10%`
    B
    `20%`
    C
    `15%`
    D
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  • 0.15g of a substance dissolved in 15g of a solvent boiled at a temp. higher by 0.216^(@)C than that of the pure solvent. Find out the molecular weight of the substance (K_(b) for solvent is 2.16^(@)C )

    A
    1.01
    B
    10.1
    C
    100
    D
    10
  • 0.15 g of a subatance dissolved in 15 g of solvent boiled at a temperature higher at 0.216^(@) than that of the pure solvent. Calculate the molecular weight of the substance. Molal elecation constant for the solvent is 2.16^(@)C

    A
    `216`
    B
    `100`
    C
    `178`
    D
    None of these
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