Question

Consider the following balanced chemical equation:

C₂H₅OH(l) + 3O₂(g) → 2CO₂(g) + 3H₂O(l)

a. How many moles of CO₂ form when 2.18 moles of C₂H₅OH react?

moles CO₂

b. How many moles of H₂O form from the reaction of 2.18 moles of C₂H₅OH?

moles H₂O

c. How many moles of CO₂ form when 2.18 moles of H₂O form?

moles CO₂

d. How many molecules of CO₂ form when 2.18 moles of H₂O form?

× 10^{(Click to select)21222324} molecules CO₂

Answer 1

C2H5OH + 3 O2 ---------------------------> 2 CO2 + 3 H2O

a) from the balanced equation

1 mol C2H5OH ----------------> 2 mol CO2

2.18 mol -------------------------> ?

=> 2.18 * 2 /1

=> 4.36 moles of CO2

b) 1 mol C2H5OH ----------------> 3 mol H2O

2.18 mol -------------------------> ?

=> 2.18 * 3 /1

=> 6.54 moles of H2O

c) 2 moles CO2 --------------> 3 mol H2O

? -----------------------------> 2.18 mol

=> 2.18 * 2 / 3

=> 1.453 moles

d) 1 mol -------------------> 6.022*10²³ molecules

1.453 moles ------------------>?

=> 1.453 * 6.022*10²³

=> 8.752*10²³ molecules of CO2