Question

66. Atomic number of C is 6 and His 1. How many electrons are
present in 1.6 grams of methane?
A.
6.02 x 1023
B.
1.204 x 1023
C. 1.806 x 10
23
D.
2.408 x 1023
E. 3.01 X
3.01 x 1023​

Answer 1

Answer:

methane=CH4

12+4*1=16gm molecule mass of methane

1.6/16=(1/10 )

total no of electrons=no of molecules *no of electrons in one molecule

(1/10)*6.022*10^23*10

=6.022*10^23