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Explain what is the pH of a 0.05 M solution of TRIS acid (pka = 8.3)?
used the formula pH= (pka- log (HA)} /2pH= 8.3-log(0.050)/2pH= 4.8
What is the dry basis concentration of carbon dioxide using the concentration data given below. Conc. CO2 (Wet) = 15.4% and Conc. H2O = 4.3%
17the decomposition of dinitrogen pentaoxide has an activation energy of 102 kj/mol and delta H =+55 kj/mil. What is the activation energy for the reverse reaction
Determine the amounts of solute and solvent needed to prepare 2.0M aqueous NaCl solution
Write the ground-state electron configurations for the following elements. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.)
Assuming that this reaction is complete and that there is 153 mg/l of CaSO4 initially present, what is the mass of soda ash that must be added to 1 liter of the water
What is the minimum uncertainty in the position of a hydrogen atom in a particle accelerator given that its speed
Calculate the molecule weight of the liquid If 2.31grams of the vapor of a volatile liquid is able to fill a 498-ml flask at temperature of 100 degree Celsius and pressure of 775 mm Hg? also determine the density of the vapor under these conditi..
How do you prepare 2-Bromo-2-phenylpropane from benzene. Using Alcl3 as one of the reagents and going through an intermediate.
Calculate the activation energy (in joules) for a reaction whose rate constant doubles when the temperature is raised
What mass (in grams)of KNO3 would have to be decomposed to produce 27.1 L of oxygen measured at STP?
Sample were collected in a zinc smelter to determine the exposure of a furnace tender to lead fume during his normal work duties which involves "furnace draws" and general activities around the furnace.
Name 4 properties of a compound that is directly influenced by the polarity of the compond. And state the 2 most important factors that affect the
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