(Solved): please calculate questions 1,2,3 and provde the steps thank you  Be sure to include proper unit ...

Be sure to include proper units for activity! QUESTIONS (cont. on next page) 1. Calculate the "true" activity of potassium-40 in your sample of potassium chloride. Your answer should be consistent with the precision of the data used in the calculations. \[ R(+r u e)=R(24)-2(15)=9.3 \times 1108 \] 2. Calculate the number of radioactive potassium-40 nuclei present in the sample of potassium chloride. 3. Using the values obtained from \( \# 1 \) and #2, calculate the decay constant and half-life for potassium \( -40 \).