3 years ago

What is an oxidation number?

1 answer:

7 0

An oxidation number is the electrical charge a molecule or ion appears to have as determined by a set of arbitary rules.

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Mass Molar of $Ca_{3} (PO_4)_2$
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P = 2*31= 62 amu
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--------------------------------------
Mass Molar of $Ca_{3} (PO_4)_2$ = 120 + 62 + 128 = 310 g/mol

Therefore: <span>What is the gram formula mass of Ca3(PO4)2 ?
</span>Answer: 310 grams

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