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Calculate the fraction of Asp that has a side chain protonated at pH 7.0 (aspartic acid side chain pka = 3.86)
How many total moles of ions are released when the following sample dissolves completely in water? 0.382 mol K2HPO4 (Assume that the hydrogen phosphate ion remains intact in solution.)
sample of H20 with a mass of 46.0 grams has a temperature of -58.0 degrees Ceslius. How many joules of energy are necessary to heat the steam from 100.0 degrees celsius to 114.0 degrees
Calculate the amount of energy in the form of heat that is produced when a volume of 2.73 L of SO2(g) is converted to 2.73 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 atm and 25.0 °C. Assume ideal gas behav..
Hexane has a vapor pressure of 100 torr at 15.8 C and 400 torr at 49.6 C. What is its deltaHvap
The activation energy of an uncatalyzed reaction is 91kJ/mol . The addition of a catalyst lowers the activation energy to 61 kJ/mol .Assuming that the collision factor remains the same, by what factor will the catalyst increase the rate of the rea..
Coal reserves contain 3.87 x 10^16 moles of carbon. If efficiency is 40% how much gross energy can this produce by burning? Assume constant pressure.
A sample is known a carbonate. How can I design an experiment that can allow me to determine the exact identity of the carbonate
When the pH of a solution is 2 units lower than the pKa of the buffer in the solution, the conjugate base/weak acid (A-/HA) is Enter a number only (no scientific notation please).
TLC plate that is then developedi n a 1:1 hexane/ethyl acetate solution the solvent front is measured at 6.5 cm and the distance traveled by caffeine is measured at 2.15 cm. What can be determined about the identity of compound X in light of this ..
What structure best represents the rate-determining intermediate formed when 1-methylcyclopentene reacts with Cl2.
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
calculate the volume of a 2.50M acetic acid solution that will be neutralized by 15.00mL of a 4.00 M NaOH solution
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