Question

$cl1 \: ch4 \: h3 \: po4$
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Answer 1

Ответ:

Mr[Cl] = Ar[Cl] = 35.453 = 35.453

Mr[CH4] = Ar[C] + Ar[H] * 4 = 12.0107 + 1.00794 * 4 = 16.04246

Mr[H3PO4] = Ar[H] * 3 + Ar[P] + Ar[O] * 4 = 1.00794 * 3 + 30.973762 + 15.9994 * 4 = 97.995182

Объяснение: