Answer:
12.0
Explanation:
i know because i did this in 10th grad
Answer:
9.606 g
Explanation:
Step 1: Write the balanced combustion reaction
C₂H₆O(l) + 3 O₂(g) → 2 CO₂(g) + 3 H₂O(g)
Step 2: Calculate the moles corresponding to 11.27 g of H₂O
The molar mass of H₂O is 18.02 /mol.
11.27 g × (1 mol/18.02 g) = 0.6254 mol
Step 3: Calculate the moles of C₂H₆O that formed 0.6254 moles of H₂O
The molar ratio of C₂H₆O to H₂O is 1:3. The moles of C₂H₆O are 1/3 × 0.6254 mol = 0.2085 mol
Step 4: Calculate the mass corresponding to 0.2085 moles of C₂H₆O
The molar mass of C₂H₆O is 46.07 g/mol.
0.2085 mol × 46.07 g/mol = 9.606 g
