____c3h8 + ____o2 → ____co2 + ____h2o what volume of carbon dioxide (co2) will be produced by the complete…

Explanation:

Step1: Balance the chemical equation

$C_3H_8 + 5O_2\rightarrow3CO_2 + 4H_2O$

Step2: Calculate the molar mass of propane

The molar mass of $C_3H_8$: $M_{C_3H_8}=3\times12.01 + 8\times1.01=44.11\ g/mol$

Step3: Calculate the number of moles of propane

$n_{C_3H_8}=\frac{m}{M}=\frac{5.53\ g}{44.11\ g/mol}\approx0.1254\ mol$

Step4: Determine the mole - ratio between propane and carbon - dioxide

From the balanced equation, the mole - ratio of $C_3H_8$ to $CO_2$ is $1:3$. So, $n_{CO_2}=3\times n_{C_3H_8}$ $n_{CO_2}=3\times0.1254\ mol = 0.3762\ mol$

Step5: Assume standard temperature and pressure (STP)

At STP, $1\ mol$ of any gas occupies $22.4\ L$. So, the volume of $CO_2$ is $V = n\times V_m$ $V_{CO_2}=0.3762\ mol\times22.4\ L/mol\approx8.43\ L$

Answer:

$8.43\ L$