The mass of one molecule of oxygen is?
Correct answer: D. 32 / 6.02 x 10^23
- A. 6.02 x 10^23/32
- B. 32 g
- C. 0.32 g
- D. 32 / 6.02 x 10^23
Explanation
The molecular mass of a molecule expressed in grams is called gram molecule or mole so 32 g is the molar mass of O2 .
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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