An object has a mass of 4.9 g and a volume of 14 ml. what is the density of the object?

Answer : The density of the object will be, 0.35 g/ml

Explanation :

Density : It is defined as the mass contained per unit volume.

Formula used for density :

Given :

Mass of an object = 4.9 grams

Volume = 14 ml

Now put all the given values in the above formula, we get the density of an object.

Therefore, the density of the object will be, 0.35 g/ml

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l