3 years ago

State the formula for density in words and mathematical symbols

Chemistry

1 answer:

sergiy2304 [10]3 years ago

6 0

density is the kilogram per cubic metre means mass divided by volume.

mathmatically= density= mass/ volume

rough = m/v

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Answer:

(1) Magnesium carbonate :-

$Q_{MgCO_3}=[Mg^{2+}][CO_3^{2-}]$

(2) Calcium phosphate :-

$Q_{Ca_3(PO_4)_2}=[Ca^{2+}^3][PO_4^{3-}^2]$

(3) Silver sulfide :-

$Q_{Ag_2S}=[Ag^{+}^2][S^{2-}]$

Explanation:

(1) Magnesium carbonate will dissociate as:-

$MgCO_3\rightarrow Mg^{2+}+CO_3^{2-}$

The expression for the ion-product is as follows:-

$Q_{MgCO_3}=[Mg^{2+}][CO_3^{2-}]$

(2) Calcium phosphate will dissociate as:-

$Ca_3(PO_4)_2\rightarrow 3Ca^{2+}+2PO_4^{3-}$

The expression for the ion-product is as follows:-

$Q_{Ca_3(PO_4)_2}=[Ca^{2+}^3][PO_4^{3-}^2]$

(3) Silver sulfide will dissociate as:-

$Ag_2S\rightarrow 2Ag^{+}+S^{2-}$

The expression for the ion-product is as follows:-

$Q_{Ag_2S}=[Ag^{+}^2][S^{2-}]$

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