This week’s lab is about using pH titration to identify

Question 1( 1 point )This week’s lab is about using pH titration to identify an unknown weak acid. Let’s go over what informationcan be extrapolated from these types of titration curves.Scenario 1: 0.5119 g of an unknown monoprotic acid are dissolved in a 25.00 mL aqueous solution, thentitrated with 14.93 mL of a 0.1956 M NaOH solution to reach a phenolphthalein endpoint.Question: What weight (in grams) of the unknown monoprotic acid in this scenario would require 20.00 mLof the 0.1956 M NaOH solution to reach a phenolphthalein endpoint?Enter Your Answer:Question 2( 1 point )What weight (in grams) of the unknown monoprotic acid in Scenario 1 would require 30.00 mL of the 0.1956M NaOH solution to reach a phenolphthalein endpoint?Enter Your Answer:Question 3( 1 point )Scenario 2: 857.2 mg of the same unknown monoprotic acid as in Scenario 1 are dissolved in a 25.0 mLaqueous solution, then titrated with 0.1956 M NaOH, yielding the titration curve shown below. Questions 3­10 refer to this scenario.Based on the weight of the acid used, at what volume of NaOH (in mL) do you expect to observe theequivalence point?Enter Your Answer:Question 4( 1 point )To two significant figures, what is the pH of the solution at the titration equivalence point?Enter Your Answer:Question 5( 1 point )What is the volume of NaOH (in mL) that has been added at the titration equivalence point?Enter Your Answer:Question 6( 1 point )How many mmol of NaOH have been added at the titration equivalence point?Enter Your Answer:Question 7( 1 point )What is the volume of NaOH added at the half­titration point?Enter Your Answer:Question 8( 1 point )What is the molar mass of the unknown acid?Enter Your Answer:Question 9( 1 point )To two significant figures, what is the pKa of the unknown acid?Enter Your Answer:Question 10( 1 point )To 3 significant figures, what is the Ka of the unknown acid?Enter Your Answer:

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