Given the following unbalanced equation: C3H8 + O2 → CO2 + H2O

If you want to make 13.60 moles of H2O, how many moles of C3H8 do you need?

3.400 mol C₃H₈

Explanation:

Step 1: Write the balanced equation

C₃H₈ +  5 O₂ →  3 CO₂ +  4 H₂O

Step 2: Establish the appropriate molar ratio

The molar ratio of C₃H₈ to H₂O is 1:4.

Step 3: Determine the moles of C₃H₈ needed to produce 13.60 moles of H₂O

We will use the previously established molar ratio.

13.60 mol H₂O × 1 mol C₃H₈/4 mol H₂O = 3.400 mol C₃H₈

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles