00:01
Hi, in this question we are given with hydrogenation reaction of dekine which is present in excess.
00:06
When dekine reacts with h2 gas, which is having 2 gram mass, then it forms decine.
00:13
That has the actual yield 76 .5 grams.
00:17
We are asked to calculate the percentage yield.
00:20
We can say that the percentage yield is equal to actual yield over theoretical.
00:32
Theoretical yield into 100.
00:38
We need to calculate the theoretical yield.
00:42
Since dekeen is present in x's then the yield will depend upon the hydrogen which will be limiting reagent here.
00:49
First we calculate the moles of hydrogen gas it will be equal to mass over molar mass we can substitute the values here.
00:57
The mass of hydrogen gas we have is 2 grams and the molar mass is 2 .016 grams.
01:04
Grams per mole.
01:07
We can eliminate the common unit gram from here and on solving we are getting moles of hydrogen gas equals to 0 .992 mole.
01:17
Now we are having the hydrogen gas and the decane...