1 mole of which of the following will have the largest mass?

• A. C_6H_{12}O_6
• B. NaCl
• C. H_2O
• D. CO_2

Answer: (A)

Verified step by step guidance

1. Identify the molar mass of each compound by summing the atomic masses of all atoms in one mole of the compound. Use the periodic table values: approximately 1 g/mol for H, 12 g/mol for C, 16 g/mol for O, and 23 g/mol for Na, 35.5 g/mol for Cl.
2. Calculate the molar mass of NaCl by adding the atomic masses of Na and Cl: \(\text{Molar mass of NaCl} = 23 + 35.5\) g/mol.
3. Calculate the molar mass of H\(_2\)O by adding the atomic masses of 2 H atoms and 1 O atom: \(\text{Molar mass of H}_2\text{O} = 2 \times 1 + 16\) g/mol.
4. Calculate the molar mass of CO\(_2\) by adding the atomic masses of 1 C atom and 2 O atoms: \(\text{Molar mass of CO}_2 = 12 + 2 \times 16\) g/mol.
5. Calculate the molar mass of C\(_6\)H\(_{12}\)O\(_6\) by adding the atomic masses of 6 C atoms, 12 H atoms, and 6 O atoms: \(\text{Molar mass of C}_6\text{H}_{12}\text{O}_6 = 6 \times 12 + 12 \times 1 + 6 \times 16\) g/mol. Compare all molar masses to determine which is largest.