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A 50.0 mL sample of 0.53 M benzoic acid, C6H5COOH and a weak monoprotic acid is titrated with 0.48 M NaOH. Compute the pH at the equivalence point.Ka of C6H5COOH = 6.5e-5.
Light with a frequency of 7.11 x 10 -14 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm.
If the value of Kc for the reaction is 2.50, what are the equilibrium concentrations of the products if the reaction mixture was initially 0.500 M SO2, 0.500 M NO2, 0.00500 M SO3, and 0.00500 M NO
a piece of matal with a specific heat capacity of 0.225 jg degrees c changes in temperature from 21.0 degrees c tp 51.0
Predict the following Bronsted acid-base reaction at 25 C: HF+CL- -> HCL + F- (a)Predict whether K will be greater or smaller than one? (b)Does delta S prime and delta H prime make a greater contribution to delta G prime?
the heat capacity of water is 4.18 J/C*gram, that the water is heated from 20 to 70 C and that the water heater is 100% efficient. You can use the conversion factor from the problem above and you may need to look up other conversion factors.
Above what Fe2+ concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 9.99? The Ksp of Fe(OH)2
What quantity of Cu(NO3)2 is present in 201 mL of a 0.50 M solution?
using a solution of hoc2h23nhcl solution in which kb hoc2h23n 5.9 times 10-7 then determine what is the ph of a 0.010
When a neutralization reaction was carried out using 100.00 mL of 0.7890M NH(3) water and 100.0 mL of 0.7940M acetic acid, change in temp was found to be 4.76 degree celcius
In a particular redox reaction, Cr is oxidized to CrO42%u2013 and Ag is reduced to Ag. Complete and balance the equation for this reaction in acidic solution. Phases are optional.
You collected a tissue specimen that you would like to preserve by freeze drying. To ensure the integrity of the specimen, the temperature should not exceed -10.5C. The vapor pressure of ice at 273.16K is 611 Pa
The half-life of carbon-14 is 5715 years. If an animal bone contains 20.0 grams of carbon-14 when the animal dies, how many grams of carbon-14 will be left in 17145 years (3 half-lives)
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