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prepare a PH = 4.00 buffer staring from 1.50 L of 0.0200 M solution of benzoic acid (c6h5cooh) and an excess of sodium benzoate (C6H5COONa)
how many grams of sodium benzoate should be added to prepare the buffer?
Design a reaction scheme to synthesize pentylbenzene from benzene using a Friedel-Crafts acylation and any other reaction
What would be the pH of 87 mL of the buffer to which 8.5 mL of 0.11 M hydrochloric acid has been added?
We do not have a reliable method for determining the number of molar equivalents of bleach being added because commercial preparations vary in concentration and "oxidizing power
Assuming that the loss of ability to recall Chem 401 material is a first-order process with a half-life of 55 days for the traditional (talking head lecture) and a C of 305 days for the active approach,
Green light of a wavelength 516 nm is absorbed by an atomic gas. What is the energy difference between the two quantum states involved in the transition.
If the mass of the ore from which the gold was extracted is 166.0 g, what percentage of the ore is gold.
While shutdown, the core accidentally went critical and the reactor pressure vessel rose in temperature and was hot for two hours, but all instrumentation has failed and no one is sure what the temperature was.
If a radiation source has an intensity of 700 rem at 2.00m, what distance is needed to decrease the intensity of exposure to below 25 rem
Semi-Empirical Expression for a Dilute Real Solution, Starting with the definition of osmotic pressure
Calculate the pH and the percent ionization of butanoic acid in this solution. *I will only award points if a solution is presented. What good does just the answer do for me?
A mixture of FeO and Fe2O3 with a mass of 10.0 g is converted to 7.43 g Fe of pure Fe metal. What are the amounts in grams of FeO and Fe2O3 in the original sample
what will the freezing points be of the resulting solution? kf(H2O)=1.86 C/m
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