Question

what is the amount of mole in 7.84gram of p4

Answer 1

1 mole of p4 = 4 × 30.978g
1 mole = 123. 912 g

Now,
123.912 g = 1 mole
1g = 1 mole / 123.912
7.84 g = 1× 7 .84 / 123. 912
7.84 g = 0.0632 moles
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Answer 2

Explanation:

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