Chapter 10, Problem 10.45P

Interpretation Introduction

Interpretation:

The boxes in the given representation need to be filled to indicate the mass of A and B in grams present at each interval.

Concept Introduction:

• Half-life − It is the time required by original radioactive element to reduce to the half of its initial concentration. Thus, at half-life ($t_{1/2}$)

  $\text{Concentration of reactant}=\frac{\text{ Initial concentration}}{\text{2}}$

• The decay of the radioactive element can be described by the following formula-

  $N(t)=N_0{(\frac{1}{2})}^{\frac{t}{t_{1/2}}}$

  Where

  N(t) − amount of reactant at time t

  N₀− Initial concentration of the reactant

  t_1/2 − Half-life of the decaying reactant