Question

How many moles of oxygen gas react with 6.00 mol of propane C3H8?

Answer 1

How many moles of oxygen gas react with 6.00 mol of propane C3H8?

Solution:

$$C _ {3} H _ {8} + 5 O _ {2} = 3 C O _ {2} + 4 H _ {2} O$$

Five moles of oxygen react with one mole of propane. For six moles of propane it is needed: $n(O_2)$ (moles) = 5*6=30

Answer: 30 moles