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should steam distillation be considered as a method of isolation and purification of an organic liquid that has a vapor pressure of 760 torr at 46 degrees C?
How many moles of MgI2 are in 1.3L of a 0.2M solution? How many moles of Mg2+ are in the solution? How many moles of I-?
Aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide.
what is the volume of 1 mole of Helium gas when the pressure is 1.47 atm and the temperature is 287 K.
what is the differences between partial and full method validation? under what circumstances are they being carried out?
Correct the absorbance of the spiked samples for dilution and plot the absorbance versus ppm Fe added. Extrapolate the graph to the point where absorbance is equal to zero to determine the amount of Fe in the cat food sample in ppm.
calculate how many protons are required to pass through the xeno-FoF1-ATP synthase complex to synthesize one ATP
Putrescine is a compound that is partially responsible for the rotten smell of decaying flesh. It consists of 54.50% C, 13.73% H, and 31.77% N. What is the empirical formula of putrescine?
Propanoic acid has a Ka of 1.4 x 10^5. If we make a solution 0.100 M in propanoic acid, what concentration of sodium propanoate should be added to give a buffer with a pH of 5.0?
Organic chemists rely heavily on the spectroscopic methods of IR and NMR. Explain in great detail (that means more than 2 or 3 sentences) why the two methods have to be used in tandem to determine
If fuel mixtures are required to contain 3.0 oxygen by mass, how many grams MTBE must be present in each 110 gasoline.
In HPLC, how often should I need to run standard with samples? Why? If the retention time is changed with real samples compared to standard
How many grams (to the nearest 0.01 g) of NH4Cl (Mm = 53.49 g/mol) must be added to 550. mL of 0.906-M solution of NH3 in order to prepare
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