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Answer all questions in the exam document embedded below. After you completed your exam, scan your pages into a single PDF, name it Exam1_StudentName (example: Exam1_JohnSmith.pdf).  Before uploading, verify your file has all the pages you need to submit. Upload it by clicking on “Choose a File” button in “Question 1” below. You are only allowed to upload one file to a question. Then click “Submit Quiz”. You may get a warning saying that you have some unanswered questions if you do not use optional file upload sections, click OK to submit anyway. View exam document here. Use double-sided arrow icon on the tool bar below to preview it in full screen mode. You can also download it and open it on your computer.   PDF file MidtermExam_Fall2025.pdf

Determine the number of moles of KClO that should be added to a 1.00 L solution of [x] M HClO to obtain a pH of [y].  Assume the addition of X does not change the volume of solution. Ka for HClO = 2.9 x 10-8

Select all TRUE statements concerning the graph shown.

Determine the molar solubility of Sr(IO3)2 in [x] M NaIO3.  It’s Ksp is 3.3 x 10-7. Our system can’t handle your tiny answer, so multiply it by 1,000,000 before entering.

Determine the pH at the equivalence point of a titration between 25.0 mL of [x] M C5H5N solution with [x] M HNO3. Remember that only the decimals in a pH count as significant figures.  Please enter your answer with three decimal places. Kb for C5H5N = 1.70 x 10-9

Determine the pH at the equivalence point of a titration between 100.0 mL of [x] M HNO2 solution with [x] M KOH. Remember that only the decimals in a pH count as significant figures.  Please enter your answer with three decimal places. Ka for HNO2 = 7.1 x 10-4  

Select all species that are strong acids.

Determine the pH of a solution consisting of [x] M HNO2 and [y] M KNO2.  Remember that only the decimals in a pH count as significant figures.  Please enter your answer with three decimal places. Ka for HNO2 = 7.1 x 10-4

Select all species that are weak acids.

Determine the number of moles of NaCN that should be added to a 1.00 L solution of [x] M HCN to obtain a pH of [y].  Assume the addition of NaCN does not change the volume of solution. Ka for HCN = 4.9 x 10-10