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A 1.00 g sample of D2O and H2O are reacted with CL2 and HCL and DCL are produced. Then they are diluted with H2O giving a volume of 1.00L. Then 25 mL of the solution are reacted with excess AgNO3 and 0.3800g AgCl precipitate formed. What was the mass percent of D2O in the original sample of enriched water?
The rate constant of a first order reaction is 4.60x10-4 s-1 at 350C if the activation energy is 104KJ/mol, calculate the temprature
Which group includes only exothermic processes? Cu(s) + H2SO4(aq) 11. In the reaction shown below, which substances are dissolved in water?
Acetic anhydride is formed from acetic acid in a condensation reaction that involves the removal of a molecule of water from between two acetic acid molecules. Write the chemical equation for this process.
The solubility of AgCrO4 is several times greater than that of AgCl, so the red precipitate cannot form until all the chloride ions have effectively been removed from the solution.
An aqueous solution is prepared from 40.0 g of lithium fluoride "LiF" (a nonvolatile ionizable electrolyte) in 200.0 g of water. Given Kb water = 0.52oC/m and the van't Hoff factor of this lithium fluoride solution = 1.20, the boiling point elevat..
Calculate ΔH and ΔStotal when two iron blocks each with mass of 1.00kg, one at 25'C and one at 250'C are placed in contact with each other in an isolated container.
The pI of alanine is 6.01. What percentage of the alanine in the solution is present as the anion. You may need to revisit the Henderson-Hasselbalch equation to solve this problem.
In an electrolysis experiment a current of 0.10 A flows through a solution of conductivity k= 0.010?^-1 and cross sectional area 10 cm^2. Find the electric field strength in the solution.
Determine the pH of each of the following solutions. (a) 0.399 M benzoic acid (weak acid with Ka = 6.3e-05). (b) 0.558 M boric acid (weak acid with Ka = 5.8e-10). (c) 0.171 M pyridine (weak base with Kb = 1.7e-09).
What force keeps the gases of the earth's atmosphere from diffusing into interplanetary space, where the pressure is essentially zero?
What is the pH of a solution that has an initial concentration of 0.25 M oxalic acid and 0.35 M oxalate ion? Consider only the first ionization of oxalic acid (Ka = 5.9 x 10-2).
It takes 485 J of energy to raise the temperature of 104.1 g mercury from 20.0°C to 53.5°C. Calculate the specific heat capacity and the molar mass capacity of mercury.
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