11.207dm3 of methane at STP has_moles of hydrogen atoms
Correct answer: B. 2
- A. 4
- B. 2
- C. 8
- D. 16
Explanation
Moles of 'H' atom in given volume of gas22.414 dm3 (I mole) of methane gascontain 4 moles of H-atoms11.207 dm3 (0.5) of methane gas contain 2 moles of H-atoms
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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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