Respuesta :
Answer:
66g
Explanation:
The first step to solving this problem is by writing a balanced chemical reaction.
Here we have glucose reacting with oxygen to give carbon iv oxide and water plus energy.
C6H12O6 + 6O2 —-> 6CO2 + 6H2O + energy
From the chemical reaction, we can see that 1 mole of glucose yielded 6 moles of carbon iv oxide. This is the theoretical relation
Now, we need to get what happened actually. Firstly, we get the number of moles of glucose reacted. This can be obtained by dividing the mass by the molar mass. The molar mass of glucose is (6 * 12) + (12 * 1) + (6 * 16) = 72 + 12 + 96 = 180g/mol
The number of moles is thus 45/180 = 0.25 mole
Now we proceed to get the number of moles of CO2 produced.
Since 6 moles of CO2 were produced from one mole of glucose, the number of moles of glucose produced is thus 6 * 0.25 = 1.5 moles
Since we have the number of moles of CO2 now, we need to know the molar mass to enable us get the mass
The molar mass of CO2 is 12 + 2(16) = 44g/mol
The mass yielded is thus 1.5 * 44 = 66g
