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Mehdi Bugnard · Answer 1 · 2019-02-09T06:37:55+0000

1 mol (NH4)2CO3 has a mass of
2N = 2 * 14 = 28
8H = 8 * 1 = 8
1 C = 12 * 1 = 12
3 O = 16 * 3 = 48
Total = 96 grams / mol

n = given mass / molar mass
given mass = 847 gram
Molar Mass = 96

n = 847 / 96 = 8.82 mols

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