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Chlorophenols impart unpleasant taste as well as odor to drinking water at concentrations as low as 5 mg/m3. They are formed when the chlorine disinfection process is applied to phenolcontaining waters. Explain what is the unpleasant taste and odor threshold in units of (a) mg/L, (b) μg/L,(c) ppmm, (d) ppbm?
using a sample of a compound containing only oxygen and chlorine reacts with an excess of h2 gas to give 0.206 g
The electrolysis of molten Al2O3 at 980 ºC is used to produce metallic aluminum. A current of 360 A is used in the electrolysis cell. What is the rate of formation of aluminum, in kilograms per hour?
A sample containing 42 ml of 0.0625 M NaBr was made by adding 37.8 ml of water to an initial solution of concentrated NaBr. Explain what the concentration of NaBr was in the initial solution
What carbonyl compound would the following condensation product? Which of the following could result from a self-aldol condensation followed by dehydration?
Determine all equilibrium concentrations, the pH, the pOH and the percent ionization of each of the following acids in water.
calculate the values of E, G, and Keq for each of the following reactions at 298k. a) Sn + 2Ag^+ = Sn^2+ + 2Ag b) Cl2 + 2I^- = 2Cl^- +I2
Provide a method for separating the mixtures of two or three compounds, dissolved in a solvent diethyl ether. In each case one of the components will be a neutral compound.
a 5.00 g sample of aluminum pellets specific heat capacity 0.89 jc g and a 10.00 g sample of iron pellets specific
The isothermal compressibility of copper at 293K is equal to 7.25X10^-7 bar^-1. What pressure must be applied to copper at 293K in order to increase its density by 0.08%
Heat of hydrogenation of 1,3,5-hexatriene is -335 kj/mol. that for 1,5- hexadiene is -252 kj/mol. Estimate the resonance energy of hexatriene.
Explain what is the concentration of ammonia in the solution if 24.50 mL of a 0.1160M solution of HCl are required to titrate a 100.0 mL of the solution
A buffer solution is made by dissolving 2.5g benzoic acid and 2.7 sodium benzoate in 100mL water. 15 mL of 0.125M NaOH is added to the solution
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