Question

How much will 1 mole of glucose weigh (in grams) on the Earth (E) and on the Moon (M)?

• A. 180(E) and 180(M)
• B. 180(E) and 90(M)
• C. 170(E) and 100(M)
• D. 180(E) and 30(M)

Hint:

Weight changes with gravity ($W=mg$), but Mass (Grams) stays the same everywhere!

Answer 1

The Correct Option is A

Step 1: Concept
The question asks for weight in "grams," which is technically a unit of mass in this context, or refers to the molar mass of the substance.

Step 2: Meaning
Mass is an intrinsic property of matter and does not change regardless of the gravitational field (Earth vs. Moon).

Step 3: Analysis
Molar mass of Glucose ($C_{6}H_{12}O_{6}$) = 180 g/mol. 1 mole will always contain the same amount of matter.

Step 4: Conclusion
The mass (amount of substance) remains 180g on both Earth and the Moon. Final Answer: (A)