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22 December, 00:32

AP Chemistry

How many grams of oxygen are in 28.2 g of H2SO4?

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  1. 22 December, 03:00
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    There are 18.4 g O in 28.2 g H_2SO_4.

    M_r = 2 * 1.008 + 32.06 + 4*16.00 = 2.016 + 32.06 + 64.00 = 98.076

    ∴ There are 64.00 g O in 98.076 g H_2SO_4.

    Mass of O = 28.2 g H_2SO_4 * (64.00 g O/98.076 g H_2SO_4) = 18.4 g O
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