The mass of calcium oxide that is formed during the decomposition of 100 g of calcium carbonate.
| April 25, 2021 | education
Given:
m (CaCO3) = 100 grams, (mass of calcium carbonate).
M (CaCO3) = 100, (paint mass of calcium carbonate).
M (CaO) = 56, (paint mass of calcium oxide).
To find:
m (CaO) -?
Solution: in order to solve the problem, we need to draw up an equation for the reaction, the dissociation of calcium carbonate. Decomposition produces calcium oxide and carbon dioxide.
CaCO3 = CaO + CO2
m (CaCO3) = m (CaCO3) divided by M (CaCO3) = 100 divided by 100 = 1 mol
m (CaO) = n (CaCO3) = 1 mol
m (CaO) = n (CaO) multiplied by M (CaO) = 1 * 56 = 56 grams.
Answer: The mass of calcium oxide after the reaction is 56 grams.
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