Answer :
To determine how many grams of nickel are in 1.57 moles of Ni, we can use the concept of molar mass. The molar mass of nickel is given as 58.69 g/mol. Here's how you can find the mass in grams:
1. Identify the Known Values:
- The molar mass of nickel (Ni) is 58.69 g/mol.
- The amount of nickel you have is 1.57 moles.
2. Use the Formula to Calculate Mass:
The formula to calculate mass from moles and molar mass is:
[tex]\[
\text{Mass of nickel} = \text{moles of nickel} \times \text{molar mass of nickel}
\][/tex]
3. Substitute the Values:
Replace the known values into the formula:
[tex]\[
\text{Mass of nickel} = 1.57 \, \text{mol} \times 58.69 \, \text{g/mol}
\][/tex]
4. Perform the Calculation:
Multiply the number of moles by the molar mass to find the mass in grams:
[tex]\[
\text{Mass of nickel} = 92.1433 \, \text{grams}
\][/tex]
Therefore, 1.57 moles of nickel corresponds to approximately 92.1433 grams of nickel.
1. Identify the Known Values:
- The molar mass of nickel (Ni) is 58.69 g/mol.
- The amount of nickel you have is 1.57 moles.
2. Use the Formula to Calculate Mass:
The formula to calculate mass from moles and molar mass is:
[tex]\[
\text{Mass of nickel} = \text{moles of nickel} \times \text{molar mass of nickel}
\][/tex]
3. Substitute the Values:
Replace the known values into the formula:
[tex]\[
\text{Mass of nickel} = 1.57 \, \text{mol} \times 58.69 \, \text{g/mol}
\][/tex]
4. Perform the Calculation:
Multiply the number of moles by the molar mass to find the mass in grams:
[tex]\[
\text{Mass of nickel} = 92.1433 \, \text{grams}
\][/tex]
Therefore, 1.57 moles of nickel corresponds to approximately 92.1433 grams of nickel.
