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What is the ay4- when edta is at ph of 10.5. is there a special trick when the ph is higher the pka6 equilibrium?
you dissolve 0.10 moles of this amino acid in 100 mL of water. What volume of 1M HCl or 1M NaOH do you need to add to the soluion to attain a final pH = 8.6?
the instrument response S for each of the five solutions, measured with a colorimeter, was found to be 0.240, 0.437, 0.621, 0.809, and 1.009, respectively. What was the concentration of Fe3+ in the water sample?
Ribonuclease P proteins RPP21 and RPP29 bind one another during complex assembly. Thermodynamic measurements reveal that ΔH° = -66.3 kJ/mol and ΔS° = -73.2 J/mole*K at 40°C. What is the equilibrium constant for the binding reaction at 40°C?
10 g of potassium chlorate, KClO3 is decomposed producing 3.915576 g of oxygen gas and 6.083363 g of potassium chloride, KCl: 2KClO3 + heat -> 2KCl + 3O2. Based on this information, what is the GMW of the oxygen produce
A helium balloon is filled to a volume of 2.5 L at atmospheric pressure. If the balloon is placed inside a sealed container and the pressure is reduced to 455 torr.
A solution of acetic acid is 40% m/m with density = 1.045 g/mL. Calculate molarity, molality, and mole percent of the acid. Molecular weight of acetic acid = 60.05 g/mol
what will be the heat capacity of a constant pressure, coffee-cup calorimeter that contains 100.0 ml of 3.0 M HCl solution? the density of the sloution is 1.098 g/mL, the specific heat capacity of the HCl solution is 4.1 J/gK and the heat capacity..
Given N2 (g) + 3 H2 (g) ? 2 NH3 (g), which scenario will allow you to eventually reach an equilibrium mixture involving these chemicals? Place only H2 into a sealed vessel. Place only N2 into a sealed vessel. Place only NH3 into a sealed vessel.
Suppose that Part II of the experiment were carried out with aqueous NaOH (sodium hydroxide) instead of Ba(OH)2 to form soluble Na2SO4
Calculate how much heat is released when this reactions occurs at a constant temperature of 25.00 degree Celicus in a constant-volume container.
a smaller amount of A would remain in the water than if the solution were extracted with one 50mL portion of diethyl ether.
How much PV work is done, and what is the value of ?E for the reaction of .50 mol of H2 with .25 mol of O2 at atmpospheric pressure if the volume change is -5.6L
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