PLEASE hurry One way to get consistent, valid data is to
Obe sure that instruments are calibrated properly.
O use simple instruments to make measurements.
select the best data to place into data tables
make the measurements as quickly as possible.

14 days is the half-life of phosphorus-32

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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