How many grams of glucose are needed to prepare 400. g of a 2.00% (m/m) glucose solution g?

Question

How many grams of glucose are needed to prepare 400. g of a 2.00% (m/m) glucose solution g?

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2022-04-12T04:56:08+00:00 1 Answer 0

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  1. Amaya
    0
    2022-04-12T04:57:54+00:00

    The grams of glucose are needed to prepare 400g of a 2.00%(m/m) glucose solution g is calculated as below

    =% m/m =mass of the solute/mass of the solution x100

    let mass of solute be represented by y
    mass of solution = 400 g
    % (m/m) = 2% = 2/100

    grams of glucose is therefore =2/100 = y/400
    by cross multiplication

    100y = 800
    divide both side by 100

    y= 8.0 grams

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