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An aqueous solution contains 0.455 M dimethylamine ((CH3)2NH).
How many mL of 0.385 M perchloric acid would have to be added to 150 mL of this solution in order to prepare a buffer with a pH of 10.800.
Assume that the maximum number of ATP's is produced (38). At pH 7, and in the presence of excess Mg2+
What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 0.560 mg/L , that total blood volume is 5.5 L , and that 1 mol of succimer binds 1 mol of lead.
A student adds 8.10 mL of a 0.490 M HCl solution to the beaker. How much will the pH change? The PKa of acetic acid is 4.760.
What is the Zn2+: Cu2+ concentration ratio in the following cell 25 degrees if the measured cell potential
what is the heat flow of hot water added to cold water? What is the heat flow of the cold water? hot water was 52.5 C the cold water was 21.7 C the final temperature was mass of cold water was 49.35g
Pretend that the HCl of this reaction is used in the neutralization of 45mL of a solution of Ga(OH) 3. What was the molarity of the Ga(OH)3 solution
A cylinder equipped with a piston expands against an external pressure of 1.58 atm. If the initial volume is 0.485 L
Write the electron configuration in spectroscopic notation starting with the preceding inert (please also explain a lil bit if you have time) gas for the following. Tell whether each is paramagnetic or diamagnetic.
Pure silver has a density of 10.50 g/cm3. A 22.8 gram sample reputed to be silver displaces 2.0 mL of water. Is the sample pure silver? and why?
What is the theoretical amount of oxygen required for the fuel mixture? What amount of air is added to the fuel mixture?
What would affect the chemical shift of the sp3 hybridized carbon atom that would cause its peak to appear at ~ 64 ppm
What affect would an increased concentration of 2,3-BPG have on the oxygen-binding curve for hemoglobin. Why would this adaptation be beneficial for functioning well at high altitude?
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