Question
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
60 grams
30 grams
15 grams
10 grams
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
60 grams
30 grams
15 grams
10 grams
Answers
GPT 3.5
The total mass of the products would be 15 grams. This can be determined by looking at the balanced chemical equation, which states that 1 mole of CaCO3 will produce 1 mole of CO2 and 1 mole of CaO. The molar mass of CaCO3 is 100 g/mol, so 30 grams of CaCO3 is equal to 0.3 moles. Therefore, we would expect to produce 0.3 moles of CO2 and 0.3 moles of CaO. The molar mass of CO2 is 44 g/mol, so 0.3 moles of CO2 would have a mass of 13.2 grams. Similarly, the molar mass of CaO is 56 g/mol, so 0.3 moles of CaO would have a mass of 16.8 grams. Adding these two masses together, we get a total mass of 13.2 grams + 16.8 grams = 30 grams, which is the total mass of the products.