Question

Calculate the number of electrons present in $15.2g$ of carbon tetrachloride $\left(CC{l}_4\right)$.

• A. $4.456\times {10}^{24}$ electrons
• B. $4.456\times {10}^{23}$ electrons
• C. $74$ electrons
• D. none of these

Answer 1

Answer: (A)

$4.456\times {10}^{24}$ electrons

Moles of $CC{l}_4=\frac{15.2}{154}=0.0987$

$1$ molecule of $CC{l}_4$ contains $74$ electrons.

$\therefore$ Total number of electrons= $74\times 0.987\times 6.022\times {10}^{23}$

=$44.56\times {10}^{23}$ electrons

=$4.456\times {10}^{24}$ electrons