What is the significance of the molar mass of glucose being 180 g/mol?

• A. It determines the volume of blood needed for a test.
• B. It helps convert moles of glucose to grams.
• C. It indicates the temperature of the glucose solution.
• D. It allows for concentration calculations in solutions.

Answer: (B)

The molar mass of glucose, which is 180 g/mol, is significant primarily because it enables the conversion of moles of glucose to grams. This means that when you know the number of moles of glucose present in a sample, you can easily calculate its mass in grams by using the molar mass as a conversion factor. For instance, if you have 2 moles of glucose, the mass can be determined by multiplying 2 moles by 180 grams/mole, resulting in 360 grams of glucose.

This conversion is essential in various biological and chemical contexts, where precise measurements of substances are necessary for reactions, solution preparations, and understanding metabolic processes. While the molar mass is important for calculations involving concentration in solutions, the specific function of converting moles to grams is why this option stands out as the most relevant answer.