Post-UTME Chemistry 2007 Objective — Question 5
Question 5 of 10 from the Post-UTME Screening (Post-UTME) Chemistry 2007 Objective paper, with the correct answer and a full explanation.
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A mixture of 12g of carbon and 64g of sulfur is heated until reaction is complete and none of the reactants is left over. What mass of the compound carbon II sulfide is formed?
- A. 152g
- B. 15.2g
- C. 76gCorrect
- D. 760g
Explanation
Moles C=1, moles S=2, matching the 1:2 stoichiometry for CS2 formation. Mass CS2 = 1 x 76 = 76g.
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