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The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.6. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.50 M B(aq) with 0.50 M HCl(aq). (a) before addition of any HCl (b) after addition of 25.0 mL of HCl (c) after addition of 50.0 mL of HCl (d) after addition of 75.0 mL of HCl (e) after addition of 100.0 mL of HCl
What is the maximum possible number of electrons in a ground-state carbon atom that have ml = 0
Calculate the mass of oxygen per gram of sulfur for sulfur dioxide. B) Calculate the mass of oxygen per gram of sulfur for sulfur trioxide.
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.60g of sodium carbonate is mixed with one containing 5.14 of silver nitrate.
How many grams of cobalt(II) chloride are required to react completely with 60.0 mL of 0.200 M KOH solution?
Repeat for 0.1 M Zn^2+ in 3 M OH- 3. What is the appropriate % if complexed iron in a 0.1 M Fe3+ solution containing 1 M KSCN?
If someone using one of those masks exhales 0.716 g of CO2/min, how many grams of potassium superoxide would be consumed in 12.00 minutes?
If 25.6 L of NO2 forms, measured at 35°C and 605 mm Hg, what is the percent yield?
Description of Chemical Reactions, Why when heating and cooling three different separate substances in open containers does the mass change in two of them (one loss mass; the other gained mass) but stays the same in the third when it is known that..
A CONTAINER HOLDS 7.62L OF N2O(g) at 4.06atm in equilibrium at 25C with 5.82L of an aqueous solution of N2O(aq).
Suggest an experimental method to ensure that the reaction of 2-bromobutane produces entirely a) 1-butene b) 2-butene
Write the electron configuration of the atom in the third row of the periodic table that has the largest difference between the third and fourth ionization energies.
A sample of gold weighs 1.2 oz. The sample is pounded into a thin rectangular sheet with an area of 400. sq. ft. The density of gold is 19.3 grams per cm3. What is the thickness of the foil in centimeters
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