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Sagot :
To find out how many grams of nickel (Ni) are in 1.57 moles of Ni, you'll want to use the molar mass of nickel and the number of moles. Here is a detailed, step-by-step solution:
1. Identify the molar mass of nickel (Ni):
The molar mass of Ni is [tex]\( 58.69 \, \text{g/mol} \)[/tex].
2. Determine the number of moles of Ni:
We have [tex]\( 1.57 \, \text{mol} \)[/tex] of Ni.
3. Set up the conversion calculation:
To convert from moles to grams, you multiply the number of moles by the molar mass (grams per mole).
[tex]\[ \text{grams of Ni} = \text{moles of Ni} \times \text{molar mass of Ni} \][/tex]
4. Substitute the given values:
[tex]\[ \text{grams of Ni} = 1.57 \, \text{mol} \times 58.69 \, \text{g/mol} \][/tex]
5. Calculate the result:
Performing the multiplication gives:
[tex]\[ \text{grams of Ni} = 92.1433 \, \text{g} \][/tex]
Therefore, there are [tex]\( 92.1433 \, \text{grams} \)[/tex] of nickel in [tex]\( 1.57 \, \text{moles} \)[/tex] of Ni.
1. Identify the molar mass of nickel (Ni):
The molar mass of Ni is [tex]\( 58.69 \, \text{g/mol} \)[/tex].
2. Determine the number of moles of Ni:
We have [tex]\( 1.57 \, \text{mol} \)[/tex] of Ni.
3. Set up the conversion calculation:
To convert from moles to grams, you multiply the number of moles by the molar mass (grams per mole).
[tex]\[ \text{grams of Ni} = \text{moles of Ni} \times \text{molar mass of Ni} \][/tex]
4. Substitute the given values:
[tex]\[ \text{grams of Ni} = 1.57 \, \text{mol} \times 58.69 \, \text{g/mol} \][/tex]
5. Calculate the result:
Performing the multiplication gives:
[tex]\[ \text{grams of Ni} = 92.1433 \, \text{g} \][/tex]
Therefore, there are [tex]\( 92.1433 \, \text{grams} \)[/tex] of nickel in [tex]\( 1.57 \, \text{moles} \)[/tex] of Ni.
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