Analysis shows that nickel oxide has the form | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Given the formula of nickel oxide is $Ni_{0.98}O_{1.00}$.Let the number of $Ni^{2+}$ ions be $x$ and the number of $Ni^{3+}$ ions be $(0.98 - x)$.

Vedclass · Accepted Answer

$Ni^{2+}=96 \%$ and $Ni^{3+}=4 \%$

Vedclass · Answer

(D) Given the formula of nickel oxide is $Ni_{0.98}O_{1.00}$.Let the number of $Ni^{2+}$ ions be $x$ and the number of $Ni^{3+}$ ions be $(0.98 - x)$.Since the total charge of the compound must be zero,the sum of positive charges equals the sum of negative charges.$2x + 3(0.98 - x) + 1(-2) = 0$$2x + 2.94 - 3x - 2 = 0$$-x + 0.94 = 0$$x = 0.94$So,the fraction of $Ni^{2+}$ ions $= \frac{0.94}{0.98} 	imes 100 \approx 96 \%$.The fraction of $Ni^{3+}$ ions $= \frac{0.98 - 0.94}{0.98} 	imes 100 = \frac{0.04}{0.98} 	imes 100 \approx 4 \%$.Therefore,the fractions are $Ni^{2+}=96 \%$ and $Ni^{3+}=4 \%$.

Analysis shows that nickel oxide has the formula $Ni_{0.98}O_{1.00}$. The fractions of $Ni^{2+}$ and $Ni^{3+}$ ions in the crystal are ......

Similar Questions

Explain the following term with a suitable example:
$(ii)$ Frenkel defect

Ionic solids with Schottky defect may contain in their structure

Frenkel defect is also known as .............

Frenkel and Schottky defects are

Vedclass Test Series

Exam Paper Generator

Online Exam Module