Answer:
total number of electron in 1 litter is 3.34 × [tex]10^{26}[/tex] electron
Explanation:
given data
mass per mole = 18 g/mol
no of electron = 10
to find out
how many electron in 1 liter of water
solution
we know molecules per gram mole is 6.02 ×[tex]10^{23}[/tex] molecules
no of moles is 1
so
total number of electron in water is = no of electron ×molecules per gram mole × no of moles
total number of electron in water is = 10 × 6.02 ×[tex]10^{23}[/tex] × 1
total number of electron in water is = 6.02×[tex]10^{24}[/tex] electron
and
we know
mass = density × volume ..........1
here we know density of water is 1000 kg/m
and volume = 1 litter = 1 × [tex]10^{-3}[/tex] m³
mass of 1 litter = 1000 × 1 × [tex]10^{-3}[/tex]
mass = 1000 g
so
total number of electron in 1 litter = mass of 1 litter × [tex]\frac{molecules per gram mole}{mass per mole}[/tex]
total number of electron in 1 litter = 1000 × [tex]\frac{6.02*10{24}}{18}[/tex]
total number of electron in 1 litter is 3.34 × [tex]10^{26}[/tex] electron
