Calculations involving masses

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Question 23

Two oxides of copper, X and Y, were analysed.

The empirical formula of oxide X was found to be $CuO\text{CuO}$ .

The results of the analysis of oxide Y showed it contained 1.27 g of copper combined with 0.16 g of oxygen.

Show, by calculation, that the two oxides had different empirical formulae. (relative atomic masses: $O=16\text{O} = 16$ , $Cu=63.5\text{Cu} = 63.5$ )

[3]

Calculations involving masses

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Question 23

Two oxides of copper, X and Y, were analysed.

The empirical formula of oxide X was found to be $CuO\text{CuO}$ .

The results of the analysis of oxide Y showed it contained 1.27 g of copper combined with 0.16 g of oxygen.

Show, by calculation, that the two oxides had different empirical formulae. (relative atomic masses: $O=16\text{O} = 16$ , $Cu=63.5\text{Cu} = 63.5$ )

[3]

Calculations involving masses

Question 23

Calculations involving masses Questions

Calculations involving masses

Question 23

Calculations involving masses Questions