One mole (mol) of glucose (molecular mass = 180 daltons) is:

• A. 6.022 × 10^{23} molecules of glucose weighing 1 gram
• B. 180 grams of glucose
• C. 180 daltons of glucose
• D. 1 liter of glucose solution

Answer: (B)

Verified step by step guidance

1. Understand the definition of a mole: One mole of any substance contains Avogadro's number of particles, which is \$6.022 \times 10^{23}$ molecules.
2. Identify the molecular mass of glucose given in the problem: 180 daltons (or atomic mass units). This means one molecule of glucose has a mass of 180 daltons.
3. Recall that the molar mass (mass of one mole) of a substance in grams is numerically equal to its molecular mass in daltons. Therefore, one mole of glucose weighs 180 grams.
4. Compare the options given: Since one mole corresponds to \$6.022 \times 10^{23}$ molecules and weighs 180 grams, the correct choice is 180 grams of glucose.
5. Note that 1 gram or 1 liter of glucose solution are not correct because the molar mass defines the mass of one mole, and volume depends on concentration and density, which are not specified here.