Question

1. Use the equation below for the following question.

C3H2(g) + 502(g) → 3CO2(g) + 4H2O(g)
If 5.0 moles of C3H8(g) react, how many molecules of water are formed?

Answer 1

120.44 × 10²³ molecules

Step-by-step explanation:

Given data:

Moles of C₃H₈ = 5.0 mol

Molecules of water produced = ?

Solution:

Chemical equation:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

Now we will compare the moles of C₃H₈ and water.

C₃H₈ : H₂O

1 ; 4

5 : 4×5 = 20 mol

Molecules of water:

1 mole = 6.022 × 10²³ molecules

20 mol×6.022 × 10²³ molecules / 1 mol

120.44 × 10²³ molecules