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For drug development, it is crucial to optimize the half-life of elimination of the drug so that the drug has long enough to act but not enough time to cause harmful side-effect. After the intravenous administration of a new beta blocker, the blood plasma of a patient was analysed for the remaining drug and the data is shown below, where c is the drug concentration measured at a time t after the injection.
Time (min) 30 60 120 150 240 360 480c (ng cm-3) 699 622 413 292 152 60 24i. Determine graphically whether the removal of the drug is a first order or second order rate process.ii. Calculate the rate constant for the process.iii. Determine the half life of the process.
Can someone please explain to me how to identify the ion when you are given its last electron with the following quantum numbers?
You have a balloon that is not permeable to gas molecules. The balloon is spherical and has a circumference of 3.141592654 m when it is filled with a gas at 20 EC and 1.0000 atm pressure.
calculate the final pressure and the number of moles of H2 in each flask
If 0.345 moles are produced during a reaction and collected at a temperature of 294K and pressire of .981 atm what volume will the gas occupy?
A graduated cylinder contains 10.0ml of water. If the volume of a single water molecule is 2.99 x 10e-23 cm e3, how many molecules are in the graduated cylinder?
What is the molecular formula for the alkane with 39 carbon atoms? What is the molecular formula for the cycloalkane with 38 carbon atoms?
if 100 mL of 0.100 M NaCl is added to 100 mL of .01 M NaCl, what is the concentration of Na ions in the final solution?"
A covalent compound is composed of a nitrogen atom, a hydrogen atom, and a carbon atom. How many electrons should the Lewis structure of the covalent compound contain?
A 2 cm string is fastened at both sides is plucked. What is the wavelength of the n = 4 standing wave? How many nodes does it contain?
Specificy which ion you would add to the unkown and how the results would identify which compound is in the unknown.
Phosphorus, P, is combined with flourine F2, to give a gaseous compound with the formula PFx. If you start with 2.982 grams of P and isolate 12.129 grams of PFx, what is the value of x?
Calculate the radiation dosage (in grays) for an 77-kg person that is exposed for 7.0 seconds to a 3.0 Ci source of beta radiation. Assume that 100% of the radiation is absorbed
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