Question

A sample of a given compound contains 13.18g of carbon and 3.32g of hydrogen. What is the percent composition of the compound?

Answer 1

The percent composition of the compound is calculated by dividing the mass of each element by the total mass of the compound and multiplying by 100. The compound is 79.88% carbon and 20.12% hydrogen by mass.

Step-by-step explanation:

The percent composition of a compound indicates the mass percentage of each element in the compound. To calculate the percent composition, you divide the mass of each individual element by the total mass of the compound and then multiply by 100 to get the percentage.

In this case, the student has a compound containing 13.18g of carbon (C) and 3.32g of hydrogen (H). First, calculate the total mass of the compound by adding the mass of carbon and hydrogen. The total mass of the compound is 13.18g + 3.32g = 16.50g.

The percent composition of carbon is calculated as (13.18g / 16.50g) × 100, which equals to approximately 79.88%. The percent composition of hydrogen is (3.32g / 16.50g) × 100, which is approximately 20.12%.

Therefore, the compound is 79.88% carbon and 20.12% hydrogen by mass.

Answer 2

The percent composition of the compound is 79.87 % of carbon and 20.12% of hydrogen

Step-by-step explanation:

Given:

mass of carbon = 13.18 grams

mass of hydrogen = 3.32 grams

percent composition of compound =?

From the given data total mass of the compound is calculated

13.8 + 3.32

= 16.5 grams

The individual percentage of hydrogen and carbon will be calculated as:

percent composition =
`(individual mass of the element)/(total mass of the compound)` x 100

For carbon,

`(13.18)/(16.5)`x 100

percent composition of carbon = 79.87 % of carbon.

for hydrogen:

`(3.32)/(16.5)`

= 20.12 % of hydrogen

In the compound given 79.87 % of carbon and 20.12% of hydrogen is present.