Answer :
To find the mass of nickel, use the formula for converting moles to mass:
$$
\text{mass} = \text{moles} \times \text{molar mass}
$$
Step 1: Identify the given values.
- Moles of nickel, $n = 1.57\ \text{mol}$
- Molar mass of nickel, $M = 58.69\ \text{g/mol}$
Step 2: Substitute the values into the formula.
$$
\text{mass} = 1.57\ \text{mol} \times 58.69\ \text{g/mol}
$$
Step 3: Multiply the values to compute the mass.
$$
\text{mass} \approx 92.1433\ \text{g}
$$
Thus, there are approximately $92.1433\ \text{g}$ of nickel in $1.57\ \text{mol}$ of Ni.
$$
\text{mass} = \text{moles} \times \text{molar mass}
$$
Step 1: Identify the given values.
- Moles of nickel, $n = 1.57\ \text{mol}$
- Molar mass of nickel, $M = 58.69\ \text{g/mol}$
Step 2: Substitute the values into the formula.
$$
\text{mass} = 1.57\ \text{mol} \times 58.69\ \text{g/mol}
$$
Step 3: Multiply the values to compute the mass.
$$
\text{mass} \approx 92.1433\ \text{g}
$$
Thus, there are approximately $92.1433\ \text{g}$ of nickel in $1.57\ \text{mol}$ of Ni.
