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Compute the pH of a solution containing .08 moles of chloroacetic acid and .04 moles of sodium chloroacetate in one liter of water, first by presuming that the activity of all species is equal to their formal concentrations, and then redo the problem taking into account the proper activity coefficients.
how efficient is the extraction of the tea leaves containing 1.0 g of caffeine with the two 3 ml portions of chloroform
Car batteries are filled with sulfuric acid. What is the mass of the acid (in grams) in 500.0 mL of the battery acid solution if the density of the solution is 1.285 g/cm^3 and if the solution is 38.1% sulfuric acid by mass.
A 4.70 g nugget of pure gold absorbed 260 J of heat. The initial temperature was 28.0°C. What was the final temperature.
suppose that you have 0.500 l of each of the following solutions and an unlimited supply of water. note c9h7nhbr is a
Calculate What will be the volume of this gas sample at standard atmospheric pressure and
Which of the following reactions best describes the acid-base properties of acetic acid (HC2H3O2) in aqueous solution
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 23.0 L of 4.75 M acid to enough water to make 500. L. What is the mass of sulfuric acid per milliliter of the diluted solution
what is the composition in atom percent of an alloy that consists of a 91.5 wt ag and b 8.5 wt cu? assume that the
A gas-filled balloon having a volume of 6.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
at -13.0 degc a common temperature for household freezers what is the maximum mass of sucralose c12h19cl3o8 you can add
HClO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.077 M in NaClO?
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