Ac quiz compilation Study guides, Class notes & Summaries
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BSMT 2H AC QUIZ COMPILATION LATEST UPDATE 2023 / 2024
- Exam (elaborations) • 9 pages • 2023
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1. For the Balanced Reaction: 
 3 Mg + 1 Fe2O3 → 3 MgO + 92 Fe; 
 What is the Ratio of moles of MgO to moles Fe? 
ANSWER: 3 mol MgO / 2 mol Fe 
2. How many sulfur atoms are present in 25.6 g 
of Al2(S2O3)3? (atomic masses (amu): 
Al=26.98, S=32.06, O=15.99) (Answer in 
proper scientific notation, use "e" as for "x10" 
and include the sign. For example: 1.00 e+3 
or 1.00 e-3) (Express in proper significant 
figures, neglect units) 
ANSWER: 2.37 e+23 
3. A pH and a pOH will add up to: 14 
4....
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