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Precipitation reactions. "WE put 50 mg of PbCl2 in 100 ml of water at 25 degrees Celcius. What is the chloride ion concentration of the solution? (Ksp of PbCl2 =1.7 x 10^(-5)
Draw the mechanism that illustrates the conversion of 2-chloro-2-methylbutane to 2-methyl-2-butanol with water (H2O) as the nucleophile.
A grizzly bear eats 20 fish per day, and a pollutant at a concentration of 30 ppb contaminates the fish. On average, the pollutant remains in the bear's body for 2 years. What is the steady-state concentration (in ppm) of the pollutant in the bear
Weight and volume measurements on a sample of pure cadmium showed its density to be 521 lb/ft3 is this a 3.5% error?
Provide calculations and explain how 100 ml of 0.5 M NaCl in 25 mM sodium phosphate buffer, ph 8, will be prepared.
A 0.692 g sample of glucose, C6H12O6, is burned in a constant volume, bomb calorimeter. The temperature change is measured at 1.80 degrees C.
The pressure in an engine cylinder increases from 7.6 atm to 13 atm as the gas is compressed from 0.50 L to 0.10 L. What is the expected cylinder temperature if the gas was initially 15°C?
write the half reaction for oxidation of n-butanol. (d) Calculate Eo' at 25.0 oC for the n-butanol half reaction in (c) above
What is the final dilution obtained after each dilution series shown below
The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according to the equation 3H2(g)+N2(g)--->2NH3(g)
What volume of pure oxygen gas (O2) measured at 546 K and 1.00 atm is formed by complete dissociation of 0.7 mol of Ag2O? 2 Ag2O(s) → 4 Ag(s) + O2(g)
Calculate the molar mass of a vapor that has a density of 1.58 g/L at 23.2 oC and 610. torr. 2. If the volume of a container is 39.4 L. and the container holds a gas at 13.2 oC. and 7.00x104 torr.
Please note that NO3 has an odd number of electrons. But you must decide where the missing electron will be. Does the central atom violate the octet rule or do the oxygen atoms? Use formal charges to decide.
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