00:01
Now let us discuss the question.
00:01
Question says a compound is composed of only carbon hydrogen and oxygen.
00:07
The combustion of 0 .519 gram of sample of this compound gives us or we can say yields 1 .24 gram of co2, 0 .255 gram of h2.
00:26
What is the empirical formula of the compound? empirical formula of compound.
00:36
It is unknown.
00:39
So, for solving this question, we should know how the reaction will occur.
00:49
So we can say mass of carbon produced, we can write mass of carbon produced from here.
01:01
And also we can write mass of carbon produced from here.
01:03
Produced from here.
01:06
So after getting mass of carbon and mass of hydrogen, we can calculate mass of oxygen.
01:10
And after calculating these three masses, we can easily calculate the empirical formula.
01:16
So mass of carbon produced will be equal to 0.
01:27
Mass of carbon produce will be equal to 1 .24 multiplied by 12 divided by 44.
01:36
Because 44 gram of co2 will contain 12 gram of carbon in this way 1 .24 gram of co2 will contain 0 .3381 gram of carbon.
01:53
In this way we can calculate mass of hydrogen.
01:57
Mass of hydrogen can be calculated as 0 .255 multiplied by 2 divided by 18...