Combustion reactions always contain products of CO + H2O with the addition of O2 (oxygen) in the reactant.
In this case it would be:
C3H7OH OR C3H8O (if you count up all the H’s)
We’re just going to use C3H7OH since that’s what you were given so it’ll be easier for you that way.
C3H7OH + O2 -> CO2 + H2O
Balanced:
2 C3H7OH + 9 O2 -> 6 CO2 + 8 H2O
Answer:
0.102 mol
Explanation:
Step 1: Write the balanced equation
PCl₅ + 4 H₂O ⇒ 5 HCl + H₃PO₄
Step 2: Calculate the moles corresponding to 7.36 g of H₂O
The molar mass of H₂O is 18.02 g/mol.
7.36 g × 1 mol/18.02 g = 0.408 mol
Step 3: Calculate the moles of PCl₅ required to react with 0.408 moles of H₂O
The molar ratio of PCl₅ to H₂O is 1:4.
0.408 mol H₂O × 1 mol PCl₅/4 mol H₂O = 0.102 mol PCl₅
