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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