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The samples of nitric and acetic acid shown here are both titrated with a 0.100 M solution of NaOH(aq).
Determine whether each of the following statements concerning these titrations is true or false.
(a) A larger volume of NaOH(aq) is needed to reach the equivalence point in the titration of HNO3.
(b) The pH at the equivalence point in the HNO3 titration will be lower than the pH at the equivalence point in the CH3COOH titration.
(c) Phenolphthalein would be a suitable indicator for both titrations.
How many grams of oxalic acid dihydrate are needed to react with 38.56 mL of a .2500M sodium hydroxide solution
Calculate the vapor pressure of water above a solution prepared by dissolving 36.0 g of glycerin (C3H8O3) in 120 g of water at 343 K. (The vapor pressure of water at 343 K is 233.7 torr.)
An aqueous solution is 30.0 % by mass ammonia, NH3, and has a density of 0.892 g/mL.The mole fraction of ammonia in the solution is?
Calculate the percent nickel in a compound for which a 11.6 mg sample required 1.38 mL of 0.010 M EDTA to reach the Murexide endpoint.
If 0.839 g of KHP were titrated, and 45.82 mL NaOH solution were necessary to reach the equivalence point, what is the concentration of the NaOH solution?
Calculate the [H3O+] of a solution that has an [OH] of 0.000 0060M. Is the solution acidic, basic or neutral. Calculate the pH and pOH of a solution that has an H2O+ concentration of 1.3 x 10 -6M.
The same apparatus is them filled with an unknown gas at 32.3 C to a pressure of 645 mm Hg. It takes 5 hours 34 minutes and 25 seconds for the pressure to fall to 207 mm Hg. Calculate the molar mass of the unknown gas.
What is the percent ionization of a 1.3 M weak acid if the pH is 4.6. The pH of a 0.200 M solution of formic acid, HCOOH, is 2.38. What is the Ka for this acid
Fully explain why this series of reaction will produce the 3,5-dibromotoluene and direct bromination of toluene produces the 2,4-dibromotoluene.
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6(g)+H2(g) 2CH4 the standard change in Gibbs free energy is
Find delta H for HCl(g) given H-Cl bond enthalpy = +431 kJ·mol-1;
calculate the H3O+ concentration in an aqueous solution at 25*C with an OH- concentration of 3.00 x 10^-2M
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