Ibuprofen is the active ingredient of Nurofen tablets. The half-life of ibuprofen is approximately 2 hours. A tablet contains 200 milligrams of ibuprofen and Joshua takes two tablets for a headache.
1. explain what is mean by the half-life of ibuprofen
2. what type of decay is represented by this context?
3.calculate the amount of ibuprofen in Joshua's system after 12 hours
4. draw a sketch graph to show how the amount of ibuprofen decrease over time
5. will this graph ever intersect the horizontal axis? explain your answer from a mathematical as well as a physiological perspective.

Question

Ibuprofen is the active ingredient of Nurofen tablets. The half-life of ibuprofen is approximately 2 hours. A tablet contains 200 milligrams of ibuprofen and Joshua takes two tablets for a headache. 
1. explain what is mean by the half-life of ibuprofen
2. what type of decay is represented  by this context?
3.calculate the amount of ibuprofen in Joshua's system after 12 hours
4. draw a sketch graph to show how the amount of ibuprofen decrease over time
5. will this graph ever intersect the horizontal axis? explain your answer from a mathematical as well as a physiological perspective.

anonymous · Answer

1. The amount of time it takes for half of the quantity of a substance to disappear.

anonymous · Answer

2. exponential

anonymous · Answer

3.

12 hours = 6 half-lives 

200/(2^6) milligrams left

= 200/64

=3.125 milligrams

anonymous · Answer

4.
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