If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures
Is this correct?
0.86*648*9.8=
5.46*10^4
Ibuprofen, pKa = 4.45 3,4-Methylenedioxymethamphetamine (MDMA)
pKa = 10.1
a. Do you expect these molecules to be protonated or deprotonated in the stomach?
b. Will these molecules be neutral, positively charged, or negatively charged in the
c. Will these molecules be readily absorbed from the stomach?
d. Do you expect these molecules to be protonated or deprotonated in the blood stream?
e. Will these molecules be neutral, positively charged, or negatively charged in the blood stream?
f. Will these molecules be readily absorbed from the blood stream?