Answered: A Solution Of Ba(OH)2 Was Standardized…

Skip to main contentHomework Help is Here – Start Your Trial Now!SEARCHHomework help starts here!ASK AN EXPERTASKScienceChemistryA solution of Ba(OH)2 was standardized against0.1215 g of primary-standard-grade benzoic acid, C6H5COOH (122.12 g/mol). An end point was observedafter addition of 43.25 mL of base. (a) Calculate the molar concentration of the base. (b) Calculate the standard deviation of the molarconcentration if the standard deviation for themass measurement was ±0.3 mg and that for thevolume measurement was ±0.02 mL. (c) Assuming an error of ±0.3 mg in the mass measurement,calculate the absolute and relative systematicerror in the molar concentration.A solution of Ba(OH)2 was standardized against0.1215 g of primary-standard-grade benzoic acid, C6H5COOH (122.12 g/mol). An end point was observedafter addition of 43.25 mL of base. (a) Calculate the molar concentration of the base. (b) Calculate the standard deviation of the molarconcentration if the standard deviation for themass measurement was ±0.3 mg and that for thevolume measurement was ±0.02 mL. (c) Assuming an error of ±0.3 mg in the mass measurement,calculate the absolute and relative systematicerror in the molar concentration.ReportChemistryBUYChemistry 10th EditionISBN: 9781305957404Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher: Cengage Learning1 Chemical Foundations2 Atoms, Molecules, And Ions3 Stoichiometry4 Types Of Chemical Reactions And Solution Stoichiometry5 Gases6 Thermochemistry7 Atomic Structure And Periodicity8 Bonding: General Concepts9 Covalent Bonding: Orbitals10 Liquids And Solids11 Properties Of Solutions12 Chemical Kinetics13 Chemical Equilibrium14 Acids And Bases15 Acid-base Equilibria16 Solubility And Complex Ion Equilibria17 Spontaneity, Entropy, And Free Energy18 Electrochemistry19 The Nucleus: A Chemist's View20 The Representative Elements21 Transition Metals And Coordination Chemistry22 Organic And Biological MoleculesChapter QuestionsProblem 1RQProblem 2RQProblem 3RQProblem 4RQProblem 5RQProblem 6RQProblem 7RQProblem 8RQProblem 9RQProblem 10RQProblem 1ALQProblem 2ALQProblem 3ALQProblem 4ALQProblem 5ALQProblem 6ALQProblem 7ALQProblem 8ALQProblem 9ALQProblem 10ALQProblem 11ALQProblem 14ALQProblem 15ALQProblem 16ALQProblem 17ALQProblem 18ALQProblem 19QProblem 20QProblem 21QProblem 22QProblem 23QProblem 24QProblem 25QProblem 26QProblem 28QProblem 29QProblem 30QProblem 31EProblem 32EProblem 33EProblem 34EProblem 35EProblem 36EProblem 37EProblem 38EProblem 39EProblem 40EProblem 41EProblem 42EProblem 43EProblem 44EProblem 45EProblem 46EProblem 47EProblem 48EProblem 49EProblem 50EProblem 51EProblem 52EProblem 53EProblem 54EProblem 55EProblem 56EProblem 57EProblem 58EProblem 59EProblem 60EProblem 61EProblem 62EProblem 63EProblem 64EProblem 65EProblem 66EProblem 67EProblem 68EProblem 69EProblem 70EProblem 71EProblem 72EProblem 73EProblem 74EProblem 75EProblem 76EProblem 77EProblem 78EProblem 79EProblem 80EProblem 81EProblem 82EProblem 83EProblem 84EProblem 85EProblem 86EProblem 87EProblem 88EProblem 89EProblem 90EProblem 91EProblem 92EProblem 93AEProblem 94AEProblem 95AEProblem 96AEProblem 97AEProblem 98AEProblem 99AEProblem 100AEProblem 101AEProblem 102AEProblem 103AEProblem 104AEProblem 105AEProblem 106AEProblem 107AEProblem 108AEProblem 109AEProblem 110AEProblem 111CWPProblem 112CWPProblem 113CWPProblem 114CWPProblem 115CWPProblem 116CWPProblem 117CPProblem 118CPProblem 119CPProblem 120CPProblem 121CPProblem 122CPProblem 123CPProblem 124CPProblem 125CPSee similar textbooksBartleby Related Questions Icon

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A solution of Ba(OH)2 was standardized against0.1215 g of primary-standard-grade benzoic acid, C6H5COOH (122.12 g/mol). An end point was observedafter addition of 43.25 mL of base.

(a) Calculate the molar concentration of the base.

(b) Calculate the standard deviation of the molarconcentration if the standard deviation for themass measurement was ±0.3 mg and that for thevolume measurement was ±0.02 mL.

(c) Assuming an error of ±0.3 mg in the mass measurement,calculate the absolute and relative systematicerror in the molar concentration.

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  • Penicillin F is recovered from a dilute aqueous fermentation broth by extraction with amyl acetate, using 6.5 volumes of solvent per 100. volumes of the aqueous phase. At pH = 3.8 the distribution coefficient KD is 74. (a) What fraction of the penicillin would be recovered in a single ideal stage? (b) What would be the recovery with three-stage extraction using fresh solvent in both stages? (c) How many ideal stages would be needed to give the same recovery as in part (b) if a counterflow cascade were used with V/L = 0.065?What is the unit of the gradient calculated from the Arrhenius plot ?A spectrometry method was applied to determine component A in solution. The result is shown in the table. Supposing an unknown sample gives result of 525, 536, 529, please calculate the concentration of A in the sample. \table [[C (u),0.00, 1.00, 2.00, 4.00, 8.00, 16.00], [1, 1.2, 110, 216, 445,869, 1750]] A m J c 1) A spectrometry method was applied to determine component A in solution. The result is shown in the table. Supposing an unknown sample gives result of 525, 536, 529, please calculate the concentration of A in the sample. CA (ug/ml) 0.00 1.00 2.00 4.00 8.00 16.00 I 1.2 110 216 445 869 1750
  • Tooth enamel consists mainly of the mineral calcium hydroxyapatite, Can(PO)(OH). Trace elements in teeth of archeological specimens provide anthropologists with clues about diet and disease of ancient people. Students at Hamline University measured the trace element strontium in cnamel from extract wisdom teeth by atomic absorption spectroscopy. Solutions were prepared with a constant total volume of 10.0mL. containing 0.750mg dissolved tooth enamel plus variable concentration of added Sr. \table[[Added Sr (ng/mL- ppb), Signal (arbitrary units)], [0, 28.0], [2.50, 34.3], [5.00, 42.8], [7.50, 51.5], [10.00, 58.6]] a) Prepare a graph to find the concentration of Sr in the 10mL sample solution in part per billion = n m L. (2%) b) Find the concentration of Sr in tooth enamel in part per million = μ (3%) 5. Tooth enamel consists mainly of the mineral calcium hydroxyapatite, Ca(PO)(OH). Trace elements in teeth of archeological specimens provide anthropologists with clues about diet and…
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