Question
According to the Law of Conservation of Mass, if 88 g of carbon dioxide (CO2
) is produced in a reaction between oxygen (O) and 24 g of carbon (C), what is the mass of dioxygen (O2
) in the reactants?(1 point)
Responses
64 g
64 g
32 g
32 g
104 g
104 g
24 g
The Law of Conservation of Mass states that mass cannot be created or destroyed in a chemical reaction, it can only be rearranged. This means that the total mass of the reactants must equal the total mass of the products.
To find the mass of dioxygen (O2) in the reactants, we need to subtract the mass of carbon dioxide (CO2) from the total mass of the reactants.
Mass of carbon dioxide (CO2) = 88 g
Mass of carbon (C) = 24 g
Total mass of reactants = mass of carbon dioxide (CO2) + mass of carbon (C)
= 88 g + 24 g
= 112 g
Therefore, the mass of dioxygen (O2) in the reactants is:
Total mass of reactants - mass of carbon dioxide (CO2) = 112 g - 88 g = <<112-88=24>>24 g