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The molecular weight of vincristine, a pharmaceutical drug, is 923.04. It is supplied in 1 mg per vial. You want to treat your culture cells with a final concentration of 3ηM vincristine and will need 10mL of cells for your experiment. You only want to add 5μL of vincristine solution to your cells. What concentration should you make your stock solution of vincristine in order to make this 5uL addition?
Please explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4 .1 M NiF2 .2 M Rb2CO3 0.01 M Sr(OH)2 and .03 M ScBr3.
Reactions of alcohols with hydrogen halides yield the important class of compound known as alky halides. Reactivity towards the hydrogen halides with an alcohol decreases
What would happen to the A450 value for a smaple which include : 1mL of 0.0025M Fe(NO3)3 + 1mL of 0.0025M KSCN + 5.0mL of 0.1M HNO3 if you accidentally added 5 drops of disodium hydrogen phosphate
For every molecule of PM that is produced, one molecule of acrolein is formed. If acrolein is not used to cure cancer, what might happen to the acrolein?
Calculate the pressure, in atmospheres, of 3.94 mol CO(g) in a 4.25 L tank at 31 degrees C.
At room temperature a beaker of liquid measures 26 degree C. What is its temperature measured in Kelvin?
The following data were obtained on the rate of lactose decomposition as a function of acid and lactose concentration. Using this information, determine the rate law expression and the value of rate constant for the acid-based hydrolysis of lactos..
What velocity must an electron have in order to have a de Broglie wavelength of 1.00 A? What velocity must a proton have in order to have the same de Broglie wavelength
Supercooled (metastable) water vapor commonly occurs in the atmosphere if dust particles are not present to begin condensation of the liquid.Sometimes small particles,such as tiny crystals of silver iodide
The decay rate for carbon 14 in the sample is 14.2 dis/min per graham carbon. In what year was the coffin most likely made? ( Assume the half life of carbon-14 is 5730 years and that the decay rate for carbon 14 in living organisms is 15 dis/min p..
All of the following are characteristics of fusion EXCEPT A) Two small nuclei combine to form a larger nucleus. B) Large amounts of toxic nuclear waste are produced during a fusion reaction.
What are the effects of temperature, molarity, surface area, nature of the reactants, and the presence of a catalyst on the reaction rate of Zn(s)+2HCl(aq)-> ZnCl2(aq)+ H2(g)
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