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Define mean life of radioactive atoms.Suppose a buffer solution 5 points contains Z moles of NaOH and 0.025 moles of its salt. The pH of

Define mean life of radioactive atoms.Suppose a buffer solution 5 points contains Z moles of NaOH and 0.025 moles of its salt. The pH of the solution is about 9.034 if the dissociation constant is 1.8 X 10^-5, then calculate the value of Z.

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