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physical science

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how much sugar is dissolved in 500 grams of a solution if the solution is 70 percent sugar by mass?


What is the concentration of a solution that contains 45 grams of sugar in 500 grams of solution?

thank you

  • physical science -

    70% of 500 g, since the 500 g "solution" is the sum of both sugar and water.

  • physical science -

    For the second problem,
    [mass sugar/mass solution]*100 = percent by mass.

  • physical science -

    Thank you DrBob222 for your kind help !! :)

  • physical science -

    . A solution contains 45 grams of nitrogen(N2) gas and 40 grams of argon(Ar). What is the mole fraction of argon in this solution?

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