The relative atomic mass of oxygen is 16 amu what is the mass of 2 mole of Oxygen gas?
Correct answer: A. 64g
- A. 64g
- B. 32g
- C. 100g
- D. 71g
Explanation
Mole= Mass/ relative atomic mass. Mass = Mole x Relative atomic mass Mass= 2 x 32(Because oxygen gas written so it means O2, O is 16 so O2 is 32) Mass= 64g
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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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