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- Two samples of 1.00 M HCl of equivalent volumes are prepared. One sample is titrated to the equivalence point with a 1.00 M solution of sodium hydroxide, while the other sample is titrated to the equivalence point with a 1.00 M solution of calcium hydroxide. a Compare the volumes of sodium hydroxide and calcium hydroxide required to reach the equivalence point for each titration. b Determine the pH of each solution halfway to the equivalence point. c Determine the pH of each solution at the equivalence point.arrow_forwardSulfanilic acid (NH2C6H4SO3H) is used in manufacturing dyes. It ionizes in water according to the equilibrium equation NH2C6H4SO3H(aq)+H2O(l)NH2C6H4SO3(aq)+H3O+(aq)Ka=5.9104 A buffer is prepared by dissolving 0.20 mol of sulfanilicacid and 0.13 mol of sodium sulfanilate (NaNH2C6H4SO3) in water and diluting to 1.00 L. Compute the pH of the solution. Suppose 0.040 mol of HCl is added to the buffer.Calculate the pH of the solution that results.arrow_forwardYou have a solution of the weak acid HA and add some of the salt NaA to it. What are the major species in the solution? What do you need to know to calculate the pH of the solution, and how would you use this information? How does the pH of the solution of just the HA compare with that of the final mixture? Explain.arrow_forward
- A solution made up of 1.0 M NH3 and 0.50 M (NH4)2SO4 has a pH of 9.26. a Write the net ionic equation that represents the reaction of this solution with a strong acid. b Write the net ionic equation that represents the reaction of this solution with a strong base. c To 100. mL of this solution, 10.0 mL of 1.00 M HCl is added. How many moles of NH3 and NH4+ are present in the reaction system before and after the addition of the HCl? What is the pH of the resulting solution? d Why did the pH change only slightly upon the addition of HCl?arrow_forwardCalculate the pH after 0.020 mole of HCl is added to 1.00 L of each of the four solutions in Exercise 22.arrow_forward. Which component of a buffered solution is capable of combining with an added strong acid? Using your example from Exercise 60, show how this component would react with added HC1.arrow_forward
- Calculate the pH after 0.15 mole of NaOH is added to 1.09 L of a solution that is 0.49 M HF and 1.05 M NaF, and calculate the pH after 0.30 mole of HCl is added to 1.09 L of the same solution of HF and NaF. 0.15 mole of NaOH 0.30 mole of HCIarrow_forwardCalculate the pH after 0.18 mole of NaOH is added to 1.05 L of a solution that is 0.57 M HCO2H and 1.06 M HCO2K, and calculate the pH after 0.36 mole of HCl is added to 1.05 L of the same solution of HCO2H and HCO2K.arrow_forwardCalculate the pH after 0.047 mole of NaOH is added to 1.00 L of each of the following solutions. c. pure H2O d. a mixture containing 0.125 M HONH2 and 0.125 HONH3Clarrow_forward
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