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Calculate the pH of a buffer solution made by mixing 34 ml of a 0.11 M potassium acetate solution with 63 ml of a 0.10M acetic acid solution. Give the pH to two decimal places.
Draw all products of the reactions of 4-Chloro-2-methyl-pentane with NaCN and AgCN. Identify the reaction mechanisms and draw resonance
Given equilibrium pressure, calculate Kp, When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) f/r2NH3(g)+CO2(g)
Draw the major organic product of the reaction. Indicate the stereochemistry via wedge/dash bonds, including explicit H and D atoms
1.00 mol Zn reacts with excess hydrochloric acid, 1.00 mol H2 gas is produced. At 25ºC and 1.00 atm= 101,325 Pa, this amount of H2 occupies 24.5 L (= 24.5 x10-3 m3). How much work is done by the chemical system.
Calculate the expected pH from a test solution made only with 2.0 mL of 2.5 M sodium acetate
When extracting caffeine from tea why do you have to use cold NaOH and water vs. room temperature
Three isotopes of argon occur in nature - 36Ar, 38Ar, 40Ar. Calculate the average atomic mass of argon to two decimal places, given the following relative atomic masses and the abundances of each of the isotopes: argon
At 63.5oC the vapor pressure of water is 175 torr and that of ethanol (C2H5OH) is 400 torr. A solution is made by mixing equal masses of water and ethanol.
Calculate the ph of a buffer that contains 1.0 M acetic acid and 1.0 M sodium acetate. (ka=1.8x10^-5)
A given mass of radium is over a million times more radioactive than the same mass of uranium
What is the reason for why a sand bath was used instead of a water bath for this particular pressure reaction? (a) Instructor preference (either could have been used with equal success).
the total volume of the gas bags of the german dirigible hindenberg, was 2.0 * 10^5m^3. how many grams of H2 would be required to fill them at 20 celcius and 1.00 atm pressure? hint convert m^3>cm^3>mL>L.
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