Concept explainers
Carbon tetrachloride has a chlorine - to- carbon mass ratio of 11.8:1. If a simple of carbon tetrachloride contains 35 g of chlorine what mass of carbon does it contain?
a. 0.34 g c
b.1.0 g c
c. 3.0 g c
d. 11.8 g c
Interpretation: Mass of carbon present in a sample of carbon tetrachloride which contains
Concept Introduction:
The elements in a chemical reaction combine in a mixed ratio to form the compound.
According to law of constant composition, all the samples of the given compound have same proportions of their constituent elements. The mass ratio of chlorine-to-carbon is:
Answer to Problem 1SAQ
Correct Answer: option c is the correct answer.
Explanation of Solution
Reason for correct option:
The mass ratio of chlorine-to-carbon is
Substitute
Rearrange the above expression as follows:
The mass of carbon is
Reasons for incorrect options:
Option (a) is incorrect because according to the above calculation, the mass of carbon
Option (b) is incorrect because the mass of carbon
Option (d) is incorrect because according to the above calculation, the mass of carbon
Hence, options (a), (b), and (d) are incorrect.
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