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Know the characteristics of molecules that form hydrogen bonds as well as how this capacity affects the ability of the molecule to dissolve in water.
25mL of a .10M solution of the weak acid hydrofluoric acid, HF, is titrsted with .10M solution of the weak base amonia, NH3. Will the pH at the equivilance point be less than 7 equal to 7 or greater than 7? Explain. Ka for HF is 7.2e-4 and Kb for ..
Sleeping pills often contain barbital, which is weakly acidic (pKa = 8.00). For analysis of the barbital content of a sleeping pill, a titration is carried out with strong base. It takes 12.00 mL of 0.200 M base to reach the stoichiometric point.
What's the reaction mechanism when n-butyl acetate reacts with sodium bromide to form n-buytl bromide
Calculate the pH of a solution prepared by mixing 0.0800 mol of chloroacetic acid plus 0.0400 mol of sodium chloroacetate in 1.04 L of water. (pKa of chloroacetic acid = 2.865.)
What is the pH of a solution made by mixing 30.00 mL of 0.10 M acetic acid with 30.00 mL of 0.10 M KOH. Assume that the volumes of the solutions are additive. Ka = 1.8 × 10-5 for CH3CO2H.
To what volume should you dilute 132ml of an 8.00M CuCl2 solution so that 52.0ml of the diluted solution contains 4.33g CuCl2
write the skeleton equation representing the heating of magnesium carbonate to produce solid mangnesium oxide and carbon dioxide gas.
A stock solution is prepared by adding 24 mL of 0.4 M Na3PO4 to enough water to make 76 mL. What is the PO43- concentration of 25 mL of the stock solution
A sample of pure NO2 is heated to 338 degrees C at which temperature it partially dissociates according to the equation
Derive Eh-pH equations based on the progressive oxidation of Mn to form oxides starting with metallic Mn. b) Plot these equations in coordinates of Eh and pH
Calculate the bp of a 10% aqueous sodium chloride solution. Assume this is an ideal solution. Kb (water) = .520 C/m: the molar mass of NaCl is 58.5g. Pure water boils at 100.00 C
Calculate the mass of water formed by the complete reaction of 935 g of propane (C3H8) with excess oxygen. (Write a balanced equation)
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