Multiple Choice
What is the molar mass of sodium chloride (NaCl)?
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2. Atoms & Elements
Calculating Molar Mass
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What mass (in mg) does 2.63 moles of nickel (Ni) have? (Atomic mass of Ni = 58.69 g/mol)
A
1,550 mg
B
154,400 mg
C
65,800 mg
D
22,300 mg
Verified step by step guidance1
Identify the given information: number of moles of nickel (Ni) is 2.63 moles, and the atomic mass of Ni is 58.69 g/mol.
Recall the formula to convert moles to mass: \(\text{mass (g)} = \text{moles} \times \text{molar mass (g/mol)}\).
Calculate the mass in grams by multiplying the moles of Ni by its atomic mass: \(\text{mass (g)} = 2.63 \times 58.69\).
Convert the mass from grams to milligrams by using the conversion factor: \$1 \text{ g} = 1000 \text{ mg}$, so multiply the mass in grams by 1000.
The result will give you the mass of 2.63 moles of nickel in milligrams.
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