What is the most appropriate tool to use when collecting data from an investigation

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

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