Question

The mass of two moles of electron
a.1.10mg
b.0.184mg
c1.008mg
d.1.873mg

Answer 1

Answer is a

mass of an electron is

$9.1 \times {10}^{ - 31} gm$

So mass of 2 moles of electrons is

$6.022 \times \: {10}^{23} \times 9.1 \times {10}^{ - 31} \times 2 = 1.10mg$

Answer 2

Heyyyyy,

Answer is a

mass of an electron is

9.1 \times {10}^{ - 31} gm

So mass of 2 moles of electrons is

6.022 \times \: {10}^{23} \times 9.1 \times {10}^{ - 31} \times 2 = 1.10mg

Hope this helps uh....

Anyway thats me...