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During the Purification of Lactate Dehydrogenase (LDH) experiment, you will need 50ml of buffer A150. Buffer A150 is 30mM Tris (pH 8.8) and 150mM NaCl. Given 1L of 1.5M Tris and 500ml of 5M NaCl, How much of each stock do you need to make 1L of the A150 buffer
What can you say about the realtive magnitudes of the latice energy of lithium iodide and its heat of hydration?
For many years drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 40.°C to 19°C
Calculate the pH after the addition of 0.00mL, 20.00mL, 24.00mL, 25.00mL, 26.00mL, 35.00mL, 44.00mL, 45.00mL, 46.00mL and 50.00mL of 0.200 M HClO4.
A container with a removable partition contains gas A and gas B. Gas A is at 400K and 10.0 atm and gas B is at 400K and 4.00 atm. The partition is removed and the gases mix
At 25 degrees celcius a sample of NH3 effuses at a rate of .050 mole per minute. Under the same conditions, which gas effuses at approximately one-half that rate?
What compound could be added to a 0.10 M KC2H3O2 solution to make it an effective buffer. Also, write a balanced chemical reaction for the addition
find the ph and the concentration of H2SO3 HSO3- AND SO3^2- in each solution:(a)0.050M H2SO3 (B) 0.050M NaHSO3
A 25ml solution of quinine was titrated with 1.00 M hydrochloric acid, HCl. It was found that the soluiton contained 0.125 moles of quinine. What was the pH of the solution after 50 ml of the HCl solution were added? Quinine is monobasic with pKb=..
The gas phase dimerization reaction 2 NO2 = N2O4 has an equilibrium constant of Kc = 4.72 at 373 K (when all concentrations are measured in M units).
You need to prepare 100.0 mL of of buffer solution of pH=4.00 using 0.10M benzoic acid (pKa=4.20) and 0.160M sodium benzoate. What is the volume of each solution needed to prepare this buffer?
if you lived in the mountains where the atmospheric pressure is 685 mm Hg, what would the partial pressure of oxygen and of nitrogen be ?
Write the balanced equation for neutralization of sulfuric acid and sodium hydroxide. How many mL of a 0.2 M solution of sodium hydroxide would be required to neutralize
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