Chemistry.. :D
Chemistry
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Calculate the number of hydrogen atoms in 39.6 g of ammonium sulfate, (NH4)2 SO4.
The answer is 1.2044E+23.
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1 solution
Get the mass of Ammonium Sulfate:
(NH4)2 SO4
= (14 + 1 * 4) * 2 + 32.06 + 16 * 4
= 28 + 8 + 32.06 + 64 = 132.06
Get the fractional part of 39.6 grams.
39.6/132.06 = 660/2201
Then, the mass of hydrogen is 8(660/2201) = 2.39
Then, the number of hydrogen atoms is:
The mass of hydrogen/(original mass) = 2.39/1 = 2.39
Therefore, the number of hydrogen atoms is: 2...