A13.2 ml rock weighs 47.6 g. determine it's density. (show all work)

The density of rock is 3.60 g/mL

Explanation:

To calculate density of a substance, we use the equation:

We are given:

Mass of rock = 47.6 g

Volume of rock = 13.2 mL

Putting values in above equation, we get:

Hence, the density of rock is 3.60 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