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Problem- An ammonia/ammonium buffer solution contains 0.42M NH3 and 0.90M NH4+. The Kb value of ammonia is 1.8x10 to the -5. Calculate the pH of this buffer. Express the pH numerically.
Express your knowledge to solve the above question
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
Chlorine gas can be produced commercially by passing an electric current through a con- centrated solution of sodium chloride (brine).
What is the maximum body accumulation of methylmercury at a constant ingestion rate of 4 mg of mercury per day?
A nuclear reaction involves the hypothetical element X, which has an atomic number of 166, as a reactant. The 360X nuclide reacts with 5 neutrons yielding a nuclide of element Y along with, altogether, 2 beta particles, 5 neutrons, 3 alpha particl..
The emulsifying agent from hand cream, a salt, is prepared from two chemicals. Write the structure of stearic acid.
Disposable lighters burn butane (C4H10) and produce CO2 and H20. Balance the chemical equation for this combustion reaction and determine how many grams of CO2 are produced by burning 1.00 g of C4H10.
Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 5.00 ?L of a 1000.0 ?g/mL
A 376 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present
Determine the room temperature heat capacities at constant pressure for the following materials: aluminum, silver, tungston and 70Cu-30Zn brass
The oxygen atom (with its 2s orbital) forms a s bond with one of the three sp2 hybrid orbitals of the carbon atom; the two hydrogen atoms (with their 1s orbitals) each form a s bond with one of the three sp2 hybrid orbitals of the carbon atom.
Problem- By titration, 15.0 mL of 0.1008 M sodium hydroxide is needed to neutralize a 0.2053 g sample of a monoprotic acid. What is the molar mass of the acid
Electrolysis is carried out on a solution of silver nitrate for 2.00 h. The platinum cathode, which has a mass of 25.0782 g, weighs 25.2794 g after the electrolysis. The platinum anode weighs the same before and after the electrolysis.
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