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A solution is prepared by dissolving 0.23 mol of acetic acid and 0.27 mol of sodium acetate in water sufficient to yield 1.00 L of solution. What is the pH change (?pH) caused by the addition of 0.05 mol of HCl to this buffer solution? The pH does not change drastically because the HCl reacts with the ________ present in the buffer solution. The Ka of acetic acid is 1.4 × 10-4.
These two solutions will be added together into a beaker to create one solution. Adding them together cause them to dilute each other. Calculated the new molarity of HX. Give your answer to four decimal places.
What's the purpose of acetic acid and sodium acetate in the lab bromination and debromination of cholesterol?
Use resonance forms to show the delocalization (over four carbon atoms) of the negative charge of the benzyl and anion
Equilibrium constant for the cell reaction is (A)100 .32/0.0591 (B)100.32/0.0295 (C) 100.26/0.0295 (D) e0.32/0.295
Determine the minimum wavelength of light necessary to overcome the work function of the following metals
Zinc chloride (ZnCl2) is 52.02% chlorine by mass. What mass of chlorine is contained in 66.0 g of ZnCl2?
From the stoichiometry, it's shown that the sodium ethoxide is used in excess. What happens to this excess during work out. (Be specific, write out the reaction that occurs and figure out at what point is it destroyed)
What is the pH of the solution that results from adding 30mL of 0.015M KOH to 50mL of 0.015M benzoic acid, Ka = 6.3 x 10^-5
Two substances are mixed together. Explain how the observer could determine if this reaction is just a mixture or an actual chemical reaction. Give an example of two reactants that would form a mixture and two reactants that would form a chemic..
Ocean currents are measured in Sverdrups (sv) where 1 sv=10^9 m^3/s. The Gulf Stream off the tip of Florida has a flow of about 35sv.
Using Hess's Law to Calculate an Unknown heat ^ H Nitrogen oxides undergo many interesting reactions in the environment and in industry. Given the following information, calculate H for the overall equation
What is the pressure (in millimeters of mercury) inside a container of gas connected to a mercury-filled open-end manometer of the sort shown when the level in the arm connected to the container is 17.2 cm lower than the level in the arm
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