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Explain what is the percent dissociation of a benzoic acid solution with pH = 2.59? The acid dissociation constant for this monoprotic acid is 6.5 x10-5.2.5%3.5%0.50%1.5%
compute the ph for each of the given cases in the titration of 50.0 ml of 0.210 m hypochlorous acidhcloaq with 0.210 m
sulfuric acid h2so4 is produced from water vapor sulfur dioxide and oxygen gas. write a balanced equation then
Calculate the pH when 27.6 mL of 0.048 MHCl is added to 100.0 mL of the above buffer.
The rate of decrease in N2H4 partial pressure in a closed reaction vessel from the reaction N2H4(g)+H2(g)?2NH3(g) is 80torr/h . What is the rate of change of NH3 partial pressure in the vessel?
Define what value do you estimate for Z {eff} experienced by the outermost electron in both {Na} and {K} by assuming core electrons contribute 1.00 also valence electrons contribute 0.00 to the screening constant?
A compound is composed of elements C, H, and N. A 11.550-mg sample of the unknown compound was combusted, producing 31.332 mg of CO2 and 8.983 mg of H2O. What is the empirical formula for this compound
The three pKa values for phosphoric acid are 2.3, 7.2, and 12.1. Calculate the amount of each salt that you will need to prepare the buffer.
How much heat will be transferred when 0.50 mol of TiO2 reacts with 1.60 mol of HCL according to the following equation? TiO2(s)+4HCL(g)->TiCl4(I)+2H2O(g) ?H=-67 kJ
ammonia rapidly reacts with hcl producing ammonium chloride. calculate the number of grams of excess reactant when
A 45.8 mL sample of a 5.8 M KNO3 solution is diluted to 1.00 L. What volume of the diluted solutions contains 15.0 g of potassium nitrate
equal quantites of the hypothetical strong acid hx weak acid ha and weak base bz are added to seperate beakers of water
a jewler wishes to make solid gold cylindrical charms with a heightof 2.0cm and a radius of 5.25mm. gold has a density
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