Question

Calculate the difference in the formulae and molecular masses
for (a) CH3OH and C2H5OH (b) C2H5OH and C3H7OH, and (c) C3H7OH
and C4H9OH.





please give me answer​

Answer 1

Answer:

for a b c all,

difference in formula is CH2

difference in molecular mass 14unit

Explanation:

(a)

molecular mass(CH3OH) = 12(1) + 1(3) + 16(1) + 1(1)

=> molecular mass (CH3OH) = 12+3+17 = 15+17 = 32

molecular mass (C2H5OH) = 12(2) +1(5) +16(1) +1(1)

=> molecular mass (C2H5OH) = 24+5 + 17 = 29+17 =46

difference = 46-32 = 14

the difference in molecular mass in alkane series is 14 more than the previous one

the difference in formula is CH2