Answer:
The correct answer option is 0.883 moles [tex] C _ 3 H _ 8 [/tex]
Explanation:
We are to find the number of moles that are consumed when a propane heater burns 38.95 g [tex] C _ 3 H _ 8 [/tex].
For this, we will divide the mass (38.95 g) of propane ([tex] C _ 3 H _ 8 [/tex]) by the molar mass which is:
C = 12.01
H = 1.01
[tex] C _ 3 H _ 8 = 3 * 12.01 + 8 * 1.01 = 44.11[/tex]
Dividing the mass by 44.11 to get the number of moles consumed:
[tex]\frac{38.95}{44.11} [/tex] = 0.883 moles [tex] C _ 3 H _ 8 [/tex]
