The general formula is:
N(t)=N0(12)tt1/2N(t)=N_0(\frac{1}{2})^{\frac{t}{t_{1/2}}}N(t)=N0(21)t1/2t
where N(t) is the amount at given time, N0 is the initial amount, t is the given time and t1/2 is the half-life.
Therefore,
N(18hrs)=400g(12)186=50.0gN(18hrs)=400g(\frac{1}{2})^{\frac{18}{6}}=50.0gN(18hrs)=400g(21)618=50.0g
Answer: 50.0 g
Need a fast expert's response?
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!
Comments
Leave a comment