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You want to make a 500ml of a 0.350M buffer of pH 6.20. You choose hydroxylamine as the system for your buffer .
a) If you start with sold hydroxylamine hrdrochloride and 1.00M NaOH, what mass of solid will you need and what volume of NaOH can you expect to add?
How do you determine the intermolecular forces in molecules based off of the polarity of a given molecule
Calculate the concentration of H30+ in a solution that contains 5.5 x 10 to the -5 M OH- at 25 degrees C. Identify the solution as acidic, basic, or neutral.
provide reaction mechanisms for the formation of each of these byproducts and specify whether the mechanisms you write are SN1, SN2, E1, E2, or none of these. explain why you would expect bisulfate to be a good leaving group for substitution or eli..
If the excess of Cr3+ is discharged into a waste stream that is saturated with atmospheric oxygen at the pH of 6.0, would there be a significant conversion of Cr3+ to dichromate at equilibrium? Present numerical results to justify your conclusion.
The mass of a golf ball is 45.9 g. If it leaves the tee with a speed of 61.0 m/s, what is its corresponding wavelength?
Zinc phosphate (Zn3(PO4)2) has a solubility product constant Ksp = 9.0 x 10^-33. What is the solubility of zinc phosphate in... a) ...pure water? b) ...0.02 M ZnCl2? c) ...0.005 M Na3PO4
Why should EH&S and FS professionals avoid inhaling the smoke produced when tar paper and roofing shingles smolder and burn?
A vertical force of 7 N (in the negative z direction) is required to hold the deflector in place. Determine the mass (kg) of the deflector. Assume the velocity of the water remains constant.
At what temperature will a solution of 8.27 g CaCl2 in 45.0 g H2O begin to freeze? Assume complete dissociation
The below table lists pressure and volume measurements for air in a cylindrical piston of an air compressor. The variables may be assumed related by: PV^k=C
When o-phthalaldehyde (1-2-benzenedicarbaldehyde) is treated with KOH, and the reaction mixture is acidified, a single neutral product, isomeric with the starting material
What volume and mass of the ethanol/water mixture did you collect from the simple distillation
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