Engineering Board Exam Reviewer · Chemistry · medium
How many grams of CaO are produced by heating 100 g of CaCO₃ (CaCO₃ CaO + CO2)? (Use H = 1, C = 12, N = 14, O = 16, Na = 23, S = 32, Cl = 35.5, Ca = 40)
- 44 g
- 100 g
- 40 g
- 56 g
Answer
D. 56 g
Solution
1 mol CaCO₃ (100 g) 1 mol CaO (56 g) = 56 g.
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