Calculate the number of oxygen atoms in 29.34 g of sodium sulfate, na2so4 .

The number of oxygen atoms in given mass of sodium sulfate are

Explanation:

To calculate the number of atoms, we first need to find the number of moles of sodium sulfate. the equation used will be:

Molar mass of sodium sulfate  142g/mol

Given mass of sodium sulfate = 29.34g

Putting values in above equation, we get:

In 1 mole of sodium sulfate, 4 moles of oxygen atoms are present.

Number of oxygen atoms present in 1 mole of sodium sulfate will be

So, in 0.206 mol of sodium sulfate, the number of oxygen atoms will be =

Hence, the number of oxygen atoms in given mass of sodium sulfate are