The total mass of the products is 30 grams.
The molar mass of CaCO3 is 100.09 g/mol. When heated, CaCO3 decomposes into CO2 and CaO.
Using stoichiometry, we can find the mass of CO2 produced:
1 mol CaCO3 produces 1 mol CO2
30 g CaCO3 * (1 mol CaCO3 / 100.09 g) * (44.01 g CO2 / 1 mol CO2) = 13.2 g CO2
The mass of CaO produced would be the remaining mass after subtracting the mass of CO2 produced:
30 g - 13.2 g = 16.8 g
Therefore, the total mass of the products is 13.2 g CO2 + 16.8 g CaO = 30 g.
Use the chemical reaction to answer the question.
CaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3
) in the chemical reaction shown. What is the total mass of the products?
(1 point)
Responses
15 grams
15 grams
30 grams
30 grams
10 grams
10 grams
60 grams
1 answer