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The UV absorbance at 280 nm is another means of protein quantization that does not rely on the production of a colored product for analysis. Illustrate this method of quantization including what aromatic structures absorb at 280 nm. Also describe potential problems associated with this method
nitrate solution according to the unbalanced equation given below. Hg(NO3)2(aq) + NaI(aq) = HgI2(s) + NaNO3(aq) (a) What volume of Hg(NO3)2 is required for complete precipitation?
What is the product of toluene+ conj base of alcohol? ( a ring with a O- ) also, where does equilibrium lies?
Perform a mole balance over all materials to find n3, the molar flow rate of heated air and water vapor leaving the lines. What is the mole fraction of water vapor in the air and water vapor mixture stream leaving the heating lines
In a chemical reaction 3 moles of one gas and 2 moles of a second gas react to form 5 moles of a third gas. In which of the processes described below should the entropy increase.
An aqueous solution containing 5.77 g of an optically pure compound was diluted to 500.0 mL with water and placed in a polarimeter tube 20.0 cm long. The measured rotation was -3.95° at 25 °C. Calculate the specific rotation of the compound.
The density of water at room temperature is 0.9970g cm^-3. How many lbs does the water in a full 5.00 gal weigh
A standard mixture containing 2.00 ppm and 2.50 ppm gave a Fe / Mn signal ratio (quotient) of 1.05. A 5.00 mL unknown Fe solution was mixed with 1.00 mL solution containing 12.5 ppm Mn
what is the ph at the equivalence point in the titration of 10.0 ml of 0.51 m hz with 0.200 m naoh? ka 5.1 times 10-6
In preparing solutions of the unknown acids, a much smaller mass of acid is used than in preparing an equal volume of KHP solution to achieve about the same concentration. Why is this
NaOH + CO2 -> Na2CO3 + H2O. If the average human body discharges 745 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft.
When solutions of strong electrolytes are formed in water, the ions are surrounded by water molecules. These interactions may be described as
Calculate the maximum concentration in M of silver ions in a solution that contains 0.025 M CO3^2-. The ksp of AG2CO3 is 8.1 x 10^-12
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