A. Use the balanced equation C3H8 + 5O2 -> 3CO2 + 4H2O to answer the following questions i. How many moles of CO2 are produced from 5 moles 02? (1 point)

ii. How many grams of CO2 are produced from 5 moles O2? (2 points)
iii how many grams of CO2 are produced from 128.00g O2? (2 points)

i. 3 moles.

ii. 132.03 grams.

iii. 105.6 grams.

Explanation:

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In this case, given the balanced chemical reaction, we can proceed as follows:

i. By starting with 5 moles of oxygen, via the 5:3 mole ratio we compute the produced moles of CO2:

ii. Now, since we have previously computed the moles of CO2 from the same moles of oxygen, by using its molar mass (44.02 g/mol), we obtain:

iii. Now, we need to combine the previously used two proportional factors for the calculation of the mass of CO2 from 128.00 grams of oxygen (molar mass 32.00 g/mol):

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