A 2.241-g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide.
Solution 96P
The empirical formula can be found using the table given below.The number of moles of each elements is obtained and the simplest whole number ratio in which the elements are present in the compound is found.
Elements |
Mass of the elements |
Atomic weight |
Number of moles |
Ni |
2.241 |
59 |
|
O |
0.611 |
16 |
|
The simplest ratio in which the elements Nickel and oxygen is present is 1:1.So the empirical formula should be NiO