Question

Calculate number of ions present in 0.5 moles of $F^{-}$.

• A. $3.613\times {10}^{23}$
• B. $3.011\times {10}^{23}$
• C. $6.022\times {10}^{22}$
• D. $4.215\times {10}^{23}$

Answer 1

The correct option is B $3.011\times {10}^{23}$

We know that,
$Numberofions=Numberofmoles\times N_{A}Numberofions=0.5\times 6.022\times {10}^{23}=3.011\times {10}^{23}$