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How much energy (in kilojoules) is released when 26.0 of ethanol vapor at 93.5 is cooled to -13.0? Ethanol has = -114.5 , = 78.4 , = 38.56 and = 4.60 . The molar heat capacity is 113 for the liquid and 65.7 for the vapor.
Compare the percent ionization of the base in (a) with the percent ionization of the base in (b).
What is the chemical definition of a buffer solution? Give an example. 2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?
barium acetate + iron (II) sulfate a) molecular equation; b) net ionic equation: 3. magnesium hydroxide + chloric acid a) molecular equation: b) net ionic equation:
a sample of he gas 3.0 l at 5.6 atm and 25degc was combined with 4.5 l of ne gas at 3.6 atm and 25degc at constant
which is to say that potassium iodide is added to the sodium chloride as a nutrient. When a 4.2962 g sample of table salt was analyzed by precipitating the halides with silver nitrate, 10.4192 g of a miture of AgCl and AgI resulted.
Calculate the increase in entropy when 3.50 mol of monatomic perfect gas with Cp = 5/2 R is heated from 250 K to 700 K and simultaneously expand from 20.0 L to 60.0 L.
What pressure would have to be applied to a 28.0mL sample of gas at 25°C and 1.00atm to compress its volume to 10.0mL at constant temperature?
How wil you determie the relative reactivites of aromatic compounds? Outline the procedure that you need to do in the laboratory to determine the relative reactivites of the following:
A photon having E = 46.9 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon
how many electrons can occupy subshells with the following values of l: when L =0 and L=3 and when L=5
Using partial orbital diagrams show the orbital hybridization that occurs for the central Carbon that can explain the formation of CH4
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 16.0 of luminol into a total volume of 75.0 of .
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