Question
Butane is made up of hydrogen and carbon I atoms. The ratio of hydrogen to carbon I atoms in butane is 5:2 What fraction of the atoms in butane are carbon I atoms?
Answer
4.7
(312 Votes)
Fflur
Professional · Tutor for 6 years
Answer
The fraction of the atoms in butane that are carbon atoms is
.
Explanation
## Step 1: Identify the ratio of hydrogen to carbon atoms in butane. The ratio is given as
, meaning for every 5 hydrogen atoms, there are 2 carbon atoms.## Step 2: Calculate the total number of atoms in one unit of butane. This is the sum of hydrogen and carbon atoms in the ratio:
## Step 3: Determine the fraction of the atoms that are carbon atoms. Since there are 2 carbon atoms out of a total of 7 atoms, the fraction is: