To determine the mass of 4.54 moles of [tex]\( \text{Na}_2\text{SO}_4 \)[/tex] (sodium sulfate), we use the formula:
[tex]\[ \text{Mass} = \text{Number of Moles} \times \text{Molar Mass} \][/tex]
Here's the step-by-step process:
1. Identify the given values:
- Number of moles of [tex]\( \text{Na}_2\text{SO}_4 \)[/tex] = 4.54 moles
- Molar mass of [tex]\( \text{Na}_2\text{SO}_4 \)[/tex] = 142.04 g/mol
2. Substitute the given values into the formula:
[tex]\[ \text{Mass} = 4.54 \, \text{moles} \times 142.04 \, \text{g/mol} \][/tex]
3. Perform the multiplication to find the mass:
[tex]\[ \text{Mass} = 644.8616 \, \text{g} \][/tex]
So, the mass of 4.54 moles of [tex]\( \text{Na}_2\text{SO}_4 \)[/tex] is [tex]\( 644.8616 \, \text{g} \)[/tex].
