Avial containing radioactive selenium-75 has an activity of 3.0 mci/ml. if 2.6 mci are required for a leukemia test, how many microliters must be administered?
a vial containing radioactive selenium-75 has an activity of 3.0 mci/ml. if 2.6 mci are required for a leukemia test, how many microliters must be administered?

Answer : The must be administered.

Solution :

As we are given that a vial containing radioactive selenium-75 has an activity of .

As, 3.0 mCi radioactive selenium-75 present in 1 ml

So, 2.6 mCi radioactive selenium-75 present in

Conversion :

Therefore, the must be administered.

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

c. orbital shape i hope this is correct