What is the mass, in grams, of 1.70 mol of carbon-12 (C)?

• A. 2.04 g
• B. 12.0 g
• C. 20.4 g
• D. 1.70 g

Answer: (C)

Verified step by step guidance

1. Identify the given quantity: 1.70 moles of carbon-12 (C).
2. Recall the molar mass of carbon-12, which is 12.0 grams per mole. This means 1 mole of carbon-12 has a mass of 12.0 g.
3. Use the formula to find mass from moles: \(\text{mass} = \text{moles} \times \text{molar mass}\).
4. Substitute the known values into the formula: \(\text{mass} = 1.70\ \text{mol} \times 12.0\ \text{g/mol}\).
5. Multiply the values to find the mass in grams (do not calculate the final number here, just set up the expression).