hiw many atoms of carbon are present in 7.8g of beneze

Asked by sofisalman584 | 21st Sep, 2021, 10:26: AM

Expert Answer:

Molar mass of benzene is 78 g/mole. 
Number of moles of benzene would be-
 
N u m b e r space o f space m o l e s space o f space B e n z e n e equals fraction numerator M a s s space i n space g over denominator M o l a r space m a s s end fraction equals fraction numerator 7.8 over denominator 78 end fraction equals 0.1 space m o l e 1 space m o l e space o f space b e n z e n e space h a v e equals space 6.022 space cross times 10 to the power of 23 space m o l e c u l e s 0.1 space m o l e space o f space b e n z e n e space w i l l space h a v e equals space 0.1 space cross times space 6.022 space cross times 10 to the power of 23 equals 6.022 cross times 10 to the power of 22 space space m o l e c u l e s I n space 1 space m o l e space o f space B e n z e n e comma space n u m b e r space o f space c a r b o n space a t o m s space p r e s e n t space i n space o n e space b e n z e n e space m o l e c u l e space i s space 6 6.022 space cross times 10 to the power of 22 space m o l e c u l e s space w i l l space h a v e equals 6.022 cross times 10 to the power of 22 cross times 6 equals 36.132 cross times 10 to the power of 22 space a t o m s

Answered by Ravi | 22nd Sep, 2021, 07:16: PM

Concept Videos

Mole Concept

This video explains the concept of mole in terms of mass, volume, number an...

Molarity and Molality

This video explains the concepts molarity, molality and contains numerical ...

Mole Concept, Molarity and Molality - Exam Decoded

This video contains practice questions and numerical problems based on the ...

All Questions Ask Doubt