CBSE Class 12-science Answered
Analysis shows that nickel oxide has the formula ni 0.98 o1.00. What fractions of nickel exist as ni 2+ and ni 3+ ions?
Asked by Saransekar407 | 11 Mar, 2019, 06:51: PM
Given formula is Ni0.98O1.0
the ratio of Ni : O = 98 : 100 which means for 100 atoms of oxygen there are 98 atoms of nickels are present.
Let us consider the number of atoms of Ni2+ = x hence the number of atoms of Ni3+ = 98 - x
Charge on Ni = charge on O
3(98-x) + 2x = 2(100)
294 - 3x + 2x = 200
-x = -94
x = 94

Percentage of Ni+3 = 100 - Ni2+
= 100 - 96
= 4 %
Answered by Ramandeep | 11 Mar, 2019, 07:13: PM
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