Question

. Given the equation:
C3H8(g) + 5 02 (g) — 3CO2(g) + 4H2O(g)
At STP, how many liters of O2 (g) are needed to completely burn 5.0 liters of C3H8 (g)?

5.0
10
10.5
15
25

Answer 1

Answer:

25 litres

Explanation:

1 dm³ of C3H8 reacts with 5 dm³ of O2

5 dm³ of C3H8 reacts with 5x5 dm³ of O2

                                            =25DM³ of O2