Question

An oxide contains 27% carbon. What is its empirical formula

Answer 1

Answer:

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here is your answer...

To find the ratio in moles you divide by the

Ar

of each element.

Using approximate values:

Ratio in grams

C:H:O

=40:6.7:53.3

Ratio in moles

⇒

40

12

:

6.7

1

:

53.3

16

⇒

3.33

:

6.7

:

3.33

Dividing through by

3.33

⇒

1

:

2

:

1

So the empirical formula is:

C

H

2

O

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