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
30 grams
30 grams
10 grams
10 grams
60 grams
60 grams
15 grams
60 grams
To determine the total mass of the products, we need to add up the masses of carbon dioxide (CO2) and calcium oxide (CaO) produced in the reaction.
From the balanced chemical equation:
1 mol CaCO3 produces 1 mol CO2 + 1 mol CaO
The molar mass of CaCO3 is 100 g/mol. This means that 1 mol of CaCO3 has a mass of 100 grams.
Since the molar ratio is 1:1 for CaCO3 and CO2, the mass of CO2 produced will also be 100 grams.
The molar mass of CaO is 56 g/mol. Therefore, for every 1 mol of CaCO3, we get 1 mol of CaO, which has a mass of 56 grams.
So, the total mass of the products (CO2 and CaO) will be:
Mass of CO2 + Mass of CaO = 100 grams + 56 grams = 156 grams.
Therefore, the total mass of the products is 156 grams.