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a) A weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction.
b) If Ka for the weak acid is 1.74*10^-5, calculate the equilibrium constant for the equation in part a. (note: first write the net ionic equation in part a.)
Calculating the concentration of the acetate ion when dissociation of acetic acid occurs in water and over varying pH conditions?
The very dense metal iridium has a face-centered cubic unit cell and a density of 22.56 g/cm3. Use this information to calculate the radius of an atom of the element.
A solution is made by dissolving 0.100 mols of NaOCl in 100.0 mL of water. The Ka of hypochlorous acid (HClO) is 3.0*10^-8 at 25.0 degrees C.
A sample of hydrogen gas was collected over water at 36°C and 855 mm Hg. The volume of the container was 6.50 L. Calculate the mass of H2(g) collected. (Vapor pressure of water = 44.6 torr at 36°C)
Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions
Explain the structure of the main mononitration product(s) of 3 bromo 1 nitrobenzen?
Calculate the final volume of the reaction mixture: B. Calculate the number of moles of each reagent (acetone, iodine, and acid) in the resulting reaction mixture: acetone: iodine: acid:
Determination of Molecular SO2 Needed for Protecting Wine, You have just finished fermenting a wine and the pH = 3.7. You need 2mg/L "molecular" SO2 to protect the wine. What level of free SO2 do you have to add to achieve the level of the molecul..
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
What is meant by enriched uranium? 1.Enriched uranium is an uranium-containing substance in which its natural amount of uranium-235 was increased.
Hydrogen gas was collected over water in a eudiometer at 26 oC when the atmospheric pressure was 756 mm Hg. What was the pressure of the hydrogen gas?
Which of the following has the highest number of Calories?
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