Answer : The mass of nickel is, 92.1433 grams
Explanation : Given,
Moles of nickel = 1.57 mole
Molar mass of nickel = 58.69 g/mole
Formula used :
![\text{Mass of nickel}=\text{Moles of nickel}* \text{Molar mass of nickel}](https://img.qammunity.org/2019/formulas/chemistry/college/a2vvbez468xfhttnyi9351psk57advi5hb.png)
Now put all the given values in this formula, we get the mass of nickel.
![\text{Mass of nickel}=1.57mole* 58.69g/mole](https://img.qammunity.org/2019/formulas/chemistry/college/aebpqq5rvpcc2uunt3ew2urvx8xyk5hhga.png)
![\text{Mass of nickel}=92.1433g](https://img.qammunity.org/2019/formulas/chemistry/college/nmydiy1hemxdnlmlajohv7dt589lid2ehu.png)
Therefore, the mass of nickel is, 92.1433 grams