(i) Calculate the number of electrons which will together with one gram .
(ii) Calculate the mass and charge on one mole of electrons .

Explanation

`(i) 9. 108 xx 10^(28) g` = 1 electron
` therefore 1 g= 1/( 9. 108 xx 10^(-28))`
` = 1.097 xx 10^(27)` elecron
(ii) Mass fo (1) mole electron
` = 9. 10 8 xx 10^(-28) xx 6. 0 223 xx 10^(23)`
`= 5 . 48 xx 10^(-4) g`
Charge of `1` mole electron
` = 1 . 66 xx 10^(-19) xx 6. 023 xx 10^(23)`
`= 9. 99 xx 10^4 C`,