Quantity of Ascorbic Acid in Vitamin C tablet Titration Results: 1000 μL aliquots of diluted Vitamin C solution against NBS solution Please only fill in 3 concordant results! Titration number: Final burette reading (mL) Initial burette reading (mL) Titre (mL) 1 2 3 Error 14.90 30.0 15.3 ±0.05 mL 0.00 14.90 0.00 ±0.05 mL 14.90 15.10 15.3 ±0.10 mL Average (mean) volume of concordant titres: mL The mass of Ascorbic Acid in Vitamin C tablet (to 3 sig figs): g

Sample # 1 2 0.2425 0.2160 0.2274 Weighed mass of ascorbic acid (g) volume of KIO3 (mL) 18.86 17.91 17.37 0.02459 0.02462 0.02432 [KIO3] (mol L-1) Mean [KIO3] (based on titration) 0.02451 mol L-1 Standard deviation in the mean [KIO3] mol L-1 Confidence limit for the [KI03] mol L-1 Relative confidence limit for the [KIO3] ppt =

CHM2045 Titration of an Antacid St. Petersburg CollegeName:_________________________ Date: __________________Recorded DataSample number Trial One Trial TwoMolarity of NaOH solution (fromprevious experiment orprovided)Molarity of HCl solutionMass of antacid tabletInitial volume of HCl fordissolving tabletFinal volume of HCl fordissolving tabletInitial volume of NaOHFinal volume of NaOHCalculated DataTrial One Trial TwoVolume of HCl added to dissolvetabletVolume of NaOH usedMoles of HCl addedMoles of NaOH addedMoles of HCl neutralized byNaOHMoles of HCl neutralized by thetabletMoles of CaCO3Grams of CaCO3Mass percent CaCO3 per gramof tablet usedAverage mass percent CaCO3 Sheet 6: Titration 2 Antacid Dry Lab Data (Titration 2)         Sample Number #9 Trial 1 Trial 2 Unit   Molarity of NaOH solution 0.1387 M   Molarity of HCl solution 0.1025 M   Mass of antacid tablet 0.1265 0.1225 g   Initial volume of HCl for dissolving tablet 0.65 20.05 mL   Final volume of HCl for…

A drug is ordered to be administered IV at the initial rate of 4 mU/min, and may increase by 2 mu/min q 15 min to a max of 10 mU/min. The IV strength is 5 mU/mL. Construct the first two lines of the titration table for this order. O A. Dose Rate (mU/min) IV rate (mL/h) 4 mU/min (initial) 8 mU/min 36 mL/h 48 mL/h O B. Dose Rate (mU/min) 4 mU/min (initial) 6 mU/min Oc. Dose Rate (mU/min) 4 mU/min (initial) 6 mU/min O D. Dose Rate (mu/min) 4 mU/min (initial) 6 mu/min IV rate (mL/h) 24 mL/h 48 mL/h IV rate (mL/h) 48 mL/h 72 mL/h IV rate (mL/h) 36 mL/h 36 mL/h

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57% O P 6:01 Asiacell l. التجربة الرابعة - اول مسائي.pdf امتحان بالتجربة الرابعة المرحلة الأولى مسائي Answer these questions: Examination time: 30 min Q1// Complete these statements: 1- Titrand should be put in ..... 2- Indicator should be added to ..... 3- Titrand have known ....... and unknown ...... 4- Indicator is used to ........ 5- Titrant have known....... and unknown ......... 6- Titrant should be put in ... Q2// prepare 0.1 N standard solution of C,H204.2H;O in 50 ml of distilled water, using the law of molar concentration above, if the atomic weight of C = 12 0=16 H=1 Q3// Write these chemical equations: 1- Reaction of hydrochloric acid aqueous solution & sodium hydroxide aqueous solution 2- Reaction of sodium hydroxide and water 3- The net ionic reaction of (reaction 1) Assistant Professor/ Dr. Nidhal. Yousif. Mohammed

PClassID=1471954077 Petra titrates 50.0 mL of an orange juice sample with 65.0 mL of 0.20 M LİOH to reach the final endpoint in the titration. What is the concentration of the citric acid in the orange juice sample? H3C6H5O7 + 3LIOH → LI3C6H5O7 + 3H2O [?]M H3C6H5O7 [H,C,H,O,] (M) Enter

Table 2. Titration data   Trial 1 Trial 2 Trial 3 Initial burette reading (mL) 1.19   2.26   2.39   Molarity of NaOH (M) 0.100   0.100   0.100   Volume of vinegar sample (mL) 5.00   5.00   5.00   Final burette reading (mL) 48.55   49.43   49.99   Expected color at end point             Volume of NaOH used (mL)           Average Volume of NaOH used in liters   Average moles of NaOH used (mol)   Average moles of acetic acid (mol)   Average molarity of acetic acid (M)     Average mass of acetic acid (g)   Average mass of vinegar (g) (assume the density of vinegar is 1.00 g/mL)   Average mass % of acetic acid in vinegar   Known mass % of acetic acid in vinegar is 5.45%   Percent Error

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How much calcium would you ingest by drinking one 8 oz glass of your tap water? Show all calculations.