How many 'Cl' (chlorine) molecules are in two moles of chlorine?
Correct answer: D. 2 × 6.02 x 10^23 molecules
- A. 2 × 6.02 x 10^-23 molecules
- B. 35.5 × 6.02 x 10^23 molecules
- C. 2 x 10^23 molecules
- D. 2 × 6.02 x 10^23 molecules
Explanation
1 mole of any molecule has 6.02x 1023 molecules (avogadro's constant), so 2 moles of chlorine would have 2 x 6.02 x 1023 molecules.
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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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