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13 July, 09:55

A sample of H2SO4 contains 2.02 g of hydrogen, 32.07 g of sulfur, and 64.00 g of oxygen. How many grams of sulfur and grams of oxygen are present in a second sample of H2SO4 containing 7.27g if hydrogen

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  1. 13 July, 10:03
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    From the chemical formula of sulfuric acid, we can see the molar ratio:

    H : S : O

    2 : 1 : 4

    Now, we convert the mass of hydrogen given into the moles of hydrogen. This is done using

    Moles = mass / Mr

    Moles = 7.27 / 1

    Moles = 7.27

    Therefore, the moles will be:

    S = 7.27 / 2 = 3.64 moles

    O = 7.27 * 2 = 14.54 moles

    Now, the respective masses are:

    S = 32 * 3.64 = 116.48 grams

    O = 16 * 14.54 = 232.64 grams
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