Question

there are 7.16 mol c and 13.9 mol h in the sample. divide by smallest: divide both by 7.16 moles. what is the lowest whole number ratio of c to h? 7.16 c:13.9 h 0.515 c:1 h 1 c:2 h

Explanation:

Step1: Calculate the ratio of C

Divide the number of moles of C ($7.16$) by $7.16$:
$$\frac{7.16}{7.16}=1$$

Step2: Calculate the ratio of H

Divide the number of moles of H ($13.9$) by $7.16$:
$$\frac{13.9}{7.16}\approx1.94\approx2$$

Answer:

$1C:2H$