NCERT Class XI Chemistry
In three moles of ethane (C2H6), calculate the following: (i) Number of moles of carbon atoms (ii) Number of moles of hydrogen atoms (iii) Number of molecules of ethane.
Solution in Detail
(i) 1 molecule of ethane contains 2 atoms of carbon. Hence 1 mol molecule of ethane will have 1 mol x 2 = 2 mol carbon atoms. Therefore, 3 mol ethane will have 3 x 2 mol = 6 mol carbon atoms (Answer).
(ii) Similarly, 3 mol of ethane contains 3 x 6 = 18 mol hydrogen atoms (Answer).
(iii) 1 mol of ethane has 6 x 10^23 molecules. Hence 3 mol will have 3 x (6 x 10^23) = 18 x 10^23 molecules (Answer)
(detailed solution given after this video)
Please watch this youtube video for a quick explanation of the solution:
This Blog Post/Article "(solved)Question 1.10 of NCERT Class XI Chemistry Chapter 1" by Parveen is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.