How many atoms are there in 0.125 moles of S8 molecules?
Correct answer: D. 4.8 x 10^23
- A. 1.6 x 10^21
- B. 9.0 x 10^22
- C. 3.6 x 10^23
- D. 4.8 x 10^23
Explanation
Moles of S8=0.125 moles. No. of atoms of S8= (8)(0.125)(6.0x1023) =4..86x1023 .Therefore option D is the correct answer.
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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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