Question

Convert 4540 grams of gold to moles of gold

Answer 1

The atomic mass of gold is 79g/mol
Therefore, 4540 grams will have
4540/79 = 57.46835
Therefore;
= 57.468 moles

Answer 2

To calculate moles , we divide mass of the substance given by the molar mass of the substance.

That can be mathematically represented as:

`Number of moles of a substance= (Given mass of a substance)/( Molar mass of substance)`

Here given mass of substance is 4540 g

Molar mass of the substance is 196 g mol⁻¹

So number of moles can be calculated as:

`Number of moles of a substance= (Given mass of a substance)/( Molar mass of substance)`

`Number of moles of gold= (4540)/(196)`

So number of moles of gold =23.16 mol