Q. 104.1( 113 Votes )

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.

Answer :

In 1 mole of ethane (C2H6), it is seen that 2 moles of carbon and 6 moles of hydrogen is present.


(i) Since three moles of ethane is present,


So, Number of moles of carbon present = 3×2


= 6


Therefore 6 moles of carbon is present in 3 moles of ethane.


(ii) Since three moles of ethane is present,


So, Number of moles of hydrogen present = 3×6


= 18


Therefore 18 moles of hydrogen is present in 3 moles of ethane.


(iii) 1 mole of ethane contains 6.023×1023 molecules of ethane [By Avogadro’s Law]


Therefore, Number of molecules if ethane in 3 moles of ethane


= 3×6.023×1023


= 18.069×1023


Therefore, Number of molecules of ethane present in 3 moles of ethane is 18.069×1023


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Interactive Quiz on Mole concept - 2Interactive Quiz on Mole concept - 2Interactive Quiz on Mole concept - 264 mins
Interactive Quiz on Equivalent ConceptInteractive Quiz on Equivalent ConceptInteractive Quiz on Equivalent Concept61 mins
Know the real concept of Atomic WeightKnow the real concept of Atomic WeightKnow the real concept of Atomic Weight50 mins
Normality and acid base titrationNormality and acid base titrationNormality and acid base titration61 mins
Some Basic Concepts of Chemistry - 12Some Basic Concepts of Chemistry - 12Some Basic Concepts of Chemistry - 1258 mins
Some Basic Concepts of Chemistry - 09Some Basic Concepts of Chemistry - 09Some Basic Concepts of Chemistry - 0952 mins
Lets understand the concept of MolesLets understand the concept of MolesLets understand the concept of Moles65 mins
Equivalent ConceptEquivalent ConceptEquivalent Concept65 mins
Combined quiz on mole concept & gaseous stateCombined quiz on mole concept & gaseous stateCombined quiz on mole concept & gaseous state63 mins
Concentration Terms Part-2Concentration Terms Part-2Concentration Terms Part-259 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses