Question

How many moles of O2 are required to react completely with 5.00 moles of C4H10?

A) 10.0
B) 20.0
C) 26.5
D) 32.5

Answer 1

The answer is D, 32.5

(I took the test)

Answer 2

32.5

Step-by-step explanation:

2C⁴H¹⁰ needs 13 O²

5 C⁴H¹⁰ needs (13/2 × 5) O² = 32.5 O²