Question

No of electrons present in 1.6 g of methane

Answer 1

molar mass of ch4 = 16 g

given mass=1.6

therefore 0.1 mole 

1 molecule have 10 electron 

0.1 mole have 6.022×1022molecules 

to find number of electron 

in 0.1 mole of methane 6.022×1022×10

6.022×1023 elecrons 

Hope it helps you buddy

Answer 2

Given,
Given mass(m) : 1.6 g
Molar Mass(M) : 16 g

Moles : n =
$\frac{given \: mass}{molar \: mass}$
$\frac{1.6}{16}$
=0.1 mol
No. of electrons =
$0.1 \times 6.022 \times {10}^{23}$
=
$6.022 \times {10}^{22}$
HOPE IT HELPS..