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Which stage of ionization usually produces more ions and why?
The pH at 25 °C of an aqueous solution of the sodium salt of p-cresol (NaC7H7O) is 11.60. Calculate the concentration of C7H7O- in this solution, in moles per liter. Ka for HC7H7O is equal to 6.7E-11.
Consider barium hydroxide, Ba(OH)2, a white powdery substance. Student A prepares a solution of Ba(OH)2 by dissolving 4.23 g of Ba(OH)2 in enough water to make 455 ml of solution.
Consider the reaction CaCN2 + 3 H2O ! CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
Calculate the cell potential after the following volumes of 0.1000 M Cr2+ is added to 50.00 mL of 0.1000 M Fe(CN)63-
Calculate the mass percent of a solution that is prepared by adding 35.9 gram of NaOH to 30.2 g of H2O.
They are all buffer solutions and would all have the same capacity 2) Of the following solutions, which has the greatest buffering capacity?
What are the equilibrium partial pressures of CO(g) and CO2(g) when 2.32 atm CO(g) and excess FeO(s) react in a sealed container at 1000°C? PCO atm PCO2 atm
A solution of 0.264 M NaOH is used to neutralized 54.0 mL H3PO4 solutions. if 1.0 mL of NaOH is required to reach end point what is the molarity of H3PO4
Calculate what will be the amount of heat, q, absorbed by the calorimeter apparatus also express your answer in kJ? (heat capacity = 2.677 x 103 J/K)
A solution containing 100 g of an unknown liquid and 900 g water has a freezing point of - 3.33 oC. What is the molar mass of the liquid? Kf = 1.86oC/m
How many grams of ethylene glycol would be needed to prevent 4kg of water from freezing above -5.0 degress C
what are the ground state electron configuration of the elements in period 2 of this alternate reality?
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