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The OH- concentration in a 2.5×10-3 M Ba(OH)2 solution is A) 4.0 × 10-12 M. D) 1.2 × 10-2 M. B) 2.5 × 10-3 M. E) 0.025 M. C) 5.0 × 10-3 M.
When the protien is treated with cyanogen bromide, four peptides are obtained. When treated with trypsin, 15 peptides are obtained. What do these results suggest regarding the sequence of the protien? Please be as specific and detailed as possible..
Determine the minimum wavelength of light necessary to overcome the work function of the following metals
What is the concentration of the potassium ion (in M) in a solution which contains 50.4 g potassium phosphate in 610 mL of solution
The air in a laboratory was measured with a barometer to be 7.40 x 102 mm Hg. What is the laboratory air pressure in atm?
A quantity of 18.68 ml of a KOH solution is needed to neutralize 0.4218g of a KHP what is the concentration of the KOH solution
write the equations that illustrate how each pair of compounds can serve as a buffer pair. A) H2CO3 and NaHCO3 (the "carbonate" buffer in blood) B) NaH2PO4 and Na2HPO4
Aluminum sulphate is used in sand paper, among other uses. How many g of aluminum oxide dihydrate will be needed to produce 500 g of aluminum sulphate by the (unbalanced) reaction below? Al2O3 •2H2O + H2SO4 Al2(SO4)3 + H2O
SO3 can be produced in the following two-step process: FeS2 + O2 ---> Fe2O3 + SO2 , SO2 + O2 ----> SO3 Assuming that all the FeS2 reacts, how many grams of SO3 are produced when 20.0 g of the FeS2 reacts with 16.0 g of O2?
iron has a density of 7.87 gcm. what mass of iron would be required to cover a football playing surface of 120 yards x
calculate the quantity of heat produced when 19.0g of propane is completely combusted in air under standard conditions. Assume that liquid water is forming.
what is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water is 22.3 cm.
The side chains of asparagine and glutamine can undergo hydrolysis in aqueous acid. Draw the reactants and products for the deamination reaction. Name the products.
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