Chemistry
Grade-9
Easy
Question
Atomic mass of carbon and helium is 12 and 4, respectively. Which of the following statements are correct with respect to the 1 mole of the element given?
- 1 mole of C = 3 × 1 mole of He
- 1 mole of He = 3 × 1 mole of C
- 1 mole of C = 1 mole of He
- 1 mole of C = of the 1 mole of He
Hint:
1 mole of all elements have equal number of atoms.
The correct answer is: 1 mole of C = 1 mole of He
Atomic mass of carbon and helium is 12 and 4, respectively.
1 mole of all elements have equal number of atoms.
Hence, 1 mole of C = 1 mole of He
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