What is the molecular formula of sodium phosphate?

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What is the molecular formula of sodium phosphate?

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Answer 1 · 2015-12-22T22:22:31

$N a_{3} P O_{4}$ $Na_3PO_4$

Explanation:

This is so since sodium is in group $1$ $1$ so has a valency of $1 +$ $1+$ while phosphate is a polyatomic ion of valency $3 -$ $3-$ and thus we need $3$ $3$ sodium atoms for each $1$ $1$ phosphate ion, hence, $N a_{3} P O_{4}$ $Na_3PO_4$ .
Overall nett charge of molecule must be zero.

The ions will be held together by strong ionic bonds and the molecules by strong coulombic forces of attraction.

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What is the molecular formula of sodium phosphate?

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