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i Chrome File Edit View History Bookmarks People Window Help A?? 36% D. Thu 1:35 AM u.s. T Blackboard @ Texas Tec × ? Home-201877-CHEM-??·Cengage Mind Tap-Cengage Lea x e G khc8h404-Google Sea: x, G net ionic equation online x Ahmed ? C ?Secure https://ng.cengage.com/static/nb/ui/evo/index.html?eISBN-9781305657571&nbld-843147;&snapshotld-843147;&id;= 324758664& :: Apps lup4 J L s?w MyTech Raiderlink Chegg ? Blackboard Texas. D The originals Synonyms, PaperHelp Calculate Your GPA " GPA calculator 5% MINDTAP t 1309 Q Search this course ? Ahmedv 17 Introduction and Quick Prep lackboard Use the Relerences to access impertant values if needed for this question. A student is asked to standardize a solution of calcium hydroxide. He weighs out 1.06 g potassium hydrogen phthalate (KHCH404, treat this as a monoprotic acid) It requires 22.8 mL of calcium hydroxide to reach the endpoint. A. What is the molarity of the calcium hydroxide solution? This calcium hydroxide solution is then used to titrate an unknown solution of perchloric acid B. If 25.2 mL of the calcium hydroxide solution is required to neutralize 26.0 mL of perchloric acid, what is the molarity of the perchloric acid solution? A-Z FIFA Question 3 NAL EXAM IEW MATH 0V1 Question 5 Question Submit Answer 4 question attempts remaining Upadhyay alu...m sheets 3361 Labs 0V1 KHULUD Current score: 29 pts (22.22 %) Autosaved at 1:33 AM

Explanation / Answer

A. At end point, no of moles of KHC8H4O4= no of moles Ca(OH)2

Moles of KHC8H4O4= 1.06/204.22= 0.00519 mol= no of moles Calcium hydroxide

Molarity of Ca(OH)2= Moles x1000/V= 0.00519x1000/22.8= 0.227 M

B. A/C to M1V1 =M2V2

M2 = M1V1/V2 = 0.0.227x25.2/26= 0.22M

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