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Compute the pH after the addition of 0.0mL, 5.00mL, 18.0mL, 25.0mL, 38.0mL, 50.0mL and 65.0mL of 0.200 M NaOH (aq) to 50.00mL of 0.100 M malic acid, L-hydroxybutanedioic acid. pka1=3.459, pka2=5.097
How and why is the average enthalpy of the reaction changed when a different concentration of sodium hydroxide is used
Consider a solution that is 0.10 M in a weak triprotic acid that is represented by the general formula H3A with the following ionization constants. What is the concentration of HA2-? For H3A Ka1=1.0E-3 Ka2= 1.0E-8 Ka3= 1.0E-12
What are the formal charges on the sulfur (\rm S), carbon (\rm C), and nitrogen (\rm N) atoms, respectively, in the resonance structure that contributes most to the stability of the thiocyanate ion, \rm SCN^
The inital temp of the water was 25.2 degree c. At equilibrium the temp of the water and metal was 30.4 degreec -what was the change of temperature in the water
The value of ?Go for the reaction, N2(g) + 3 H2(g) 2 NH3(g) is -32.90 kJ at 298 K. Calculate the value of ?G in kJ at 298 K if the partial pressures of N2, H2 and NH3 are 9.139, 8.009, and 9.718 atm respectively.
describe the main components of the liquid chromatography-mass spec and how they are used in sample identification.
A solution is made by mixing 45.0mL of ethanol, C2H6O, and 55.0mL of water. Presuming ideal behavior what is the vapor pressure of the solution at 20 °C
a 15.0-ml sample of nacl solution has a mass of 15.78 g. afterthe nacl solution is evaporated to dryness the dry salt
Bombardment of nitrogen-14 with an alpha particle produces a proton and what other radioactive isotope
discuss the various ways that the Fischer esterification reaction can be run to maximize conversion to ester.
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity
It takes 45.0 to raise the temperature of an 10.4 piece of unknown metal from 13.0 to 24.0. What is the specific heat for the metal
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