Question

Positive charge in a one mole of ${\text{Li}}^{+}$ ion is

• A. $1.6\times {10}^{-19}\text{C}$
• B. $29\times {10}^4\text{C}$
• C. $4.8\times {10}^{-19}\text{C}$
• D. $29\times {10}^{-19}\text{C}$

Answer 1

The correct option is B $29\times {10}^4\text{C}$

One mole of ${\text{Li}}^{+}$ contains $3N_0(3\times 6.023\times {10}^{23})$ no. of proton
$\therefore \text{q}=3\times 6.023\times {10}^{23}\times 1.6\times {10}^{-19}\text{C}$
$=3\times 6.023\times 1.6\times {10}^4\text{C}$
$=29\times {10}^4\text{C}$