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You add 2.0mL of 2 M HCL to 1L of .1M HEPES buffer, PH 8.0 (pKa 7.6). Does the HEPES dissociate and how much does HEPES unassociate? Can you explain your answer please?
Problem- Starting with 1.600 mL of an alcohol (MW 88, d = 0.8114 g/mL) and 3 mL of glacial acetic acid (MW 60, d=1.06 g/mL), calculate the % yield if you collect 0.008 moles of product. (0 digits after decimal point)
The activation energy for the gas phase decomposition of difluoroperoxide is 72.4 kJ. F2O2 F2 + O2 The rate constant at 238 K is 8.04E-4 /s. The rate constant will be /s at 286 K.
A solution is prepared by dissolving 0.16mol of acetic acid and 0.16mol of ammonium chloride in enough water to make 1.0 L of solution.
Explain how would expect the nonbonding electron-pair domain in NH3 to be greater or less in size than for the corresponding one in PH3
a sealed balloon is filled with 1.70 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
what is the molar concentrations for those two. The solution volumes are additive. Thank you so much I can't figure this out and I've been looking at it for 2 hours. I need it for my lab report.
Are samples A as well as B distinguishable by elemental analysis, X-ray diffraction, absorption spectroscopy or emission spectroscopy. Offer a one sentence explanation for each.
Depict the structures of the compounds as well as predict whether they can diffuse across a membrane without facilitated diffusion. Define why did you come to the conclusion.
When a 5.49-g sample of gaseous hydrogen bromide dissolves in 33.0 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 21.00 oC to 62.66 oC. Calculate H in kJ/mol HBr for the solution process.
Aluminum nitrate and annonium chloride react to produce aluminum chloride, nitrogen and water. what mass of aluminum chloride is present after 43 g of aluminum nitrate and 43 g of amminium chloride have reacted completely
What quantity of heat is required to change 40.0 g of ice at melting point to liquid water? The heat of fusion of ice is 335 J/g. The answer should be 13400 J Please include steps in solving
A solution of a dye was analyzed by spectrophotometry, and the following calibration data were collected. Dye Conc.(Y) (M) Absorbance(X) at 475 nm
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