Question

4. Propane gas (C3H8) burns completely in the presence of oxygen gas (O2) to yield carbon dioxide gas (CO2) and water vapor (H2O). • Write a balanced equation for this reaction. • Assuming that all volume measurements occur at the same temperature and pressure, how many liters of oxygen will be required to completely burn 0.700 L of propane gas? • Assuming that all volume measurements occur at the same temperature and pressure, how many liters of carbon dioxide gas will be produced in the reaction? • Assuming that all volume measurements occur at the same temperature and pressure, how many lit

Answer 1

\[C{3}H8 + 5 O2 -> 3 CO2 +4 H2O\]

Answer 2

Using the mol ratio 1 : 5 -> 3 : 4
1 mol C3H8 require 5 mol O2 ( for example)
Because the # of mol = # volume -> 0.7 L = 0.7 mol ( Gas state only )
-> Volume of O2 = 5* 0.7= 3.5 L