Question

based on the following balanced equation: 4h₂o + 7co₂ → c₇h₈ + 9o₂. how many moles of toluene, c₇h₈ form from 14 moles of co₂? 14 mol co₂ → ? mol c₇h₈

Explanation:

Step1: Identify mole - ratio

From the balanced equation $4H_2O + 7CO_2
ightarrow C_7H_8+9O_2$, the mole - ratio of $CO_2$ to $C_7H_8$ is $7:1$.

Step2: Set up proportion

Let $x$ be the number of moles of $C_7H_8$. We have the proportion $\frac{7\ mol\ CO_2}{1\ mol\ C_7H_8}=\frac{14\ mol\ CO_2}{x}$.

Step3: Solve for $x$

Cross - multiply: $7x = 14\times1$. Then $x=\frac{14\times1}{7}$.
$x = 2$.

Answer:

2