Calculations involving masses

A sheet of gold leaf used in decorative gilding contains 0.0394 g of gold.

Calculate the number of gold atoms in this sheet of gold leaf.

Relative atomic mass ( $A_r$ ): $Au=197\text{Au} = 197$ Avogadro constant = 6.02 × 10²³

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[2]

A sheet of gold leaf used in decorative gilding contains 0.0394 g of gold.

Calculate the number of gold atoms in this sheet of gold leaf.

Relative atomic mass ( $A_r$ ): $Au=197\text{Au} = 197$ Avogadro constant = 6.02 × 10²³

Show your working.

[2]

Calculations involving masses Questions