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

Answer: (B)

Verified step by step guidance

1. 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.
2. Recall the formula to convert moles to mass: \(\text{mass (g)} = \text{moles} \times \text{molar mass (g/mol)}\).
3. Calculate the mass in grams by multiplying the moles of Ni by its atomic mass: \(\text{mass (g)} = 2.63 \times 58.69\).
4. 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.
5. The result will give you the mass of 2.63 moles of nickel in milligrams.