Question

How many moles of protons will have total charge equal to about $4825$ Coulombs?

• A. $0.02mole$
• B. $0.5mole$
• C. $0.05mole$
• D. $0.2mole$

Answer 1

The correct option is C $0.05mole$

$1$ proton has charge= $1.6\times {10}^{-19}C$

$\therefore$ $1$ mole of proton= $1.6\times {10}^{-19}\times 6.022\times {10}^{23}$

$=96352C$

$\therefore 4825C=\frac{4825}{96352}=0.049\simeq 0.05$ moles of proton