Homework Answers
The molar mass of Vitamin C is : 176.14 g/mol
Average mass of Vitamin C = Average moles of Vitamin C * Molar mass = 1.454 * 10-3 * 176.14 = 25.61 * 10-3 g = 25.61 mg
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average mol vitamin C titrated =1.454x10^-4
when prepared 5.0ml of vitamin C was added to a...
Calculate the weight percent of ascorbic acid in a tablet of Vitamin C from the following data: A 100 mg sample of a crushed Vitamin C tablet was dissolved in 40 mL of H2SO4 and 20 mL of water. Two gr...
Calculate the weight percent of ascorbic acid in a tablet of Vitamin C from the following data: A 100 mg sample of a crushed Vitamin C tablet was dissolved in 40 mL of H2SO4 and 20 mL of water. Two grams of KI and 35 mL of 0.0107 M KIO3 solution was added, and the mixture titrated to a starch endpoint. The titration required 12 mL of 0.0790 M thiosulfate solution.
Need help with the following 1) Moles of I2 added & the moles vitamin C titrated...
Need help with the following
1) Moles of I2 added & the moles vitamin C titrated
2) Grams of vitamin C in the sample & Grams of vitamin C
in the tablet
3) The average g/tablet
Trial 1 2song 10.4oolg rome loml T Part B: Vitamin C Tablet tablet strength mass tablet dilution volume volume titrated volumel, initial volume la final volumely added moles lz added moles vitamin C titrated g vitamin C in sample g vitamin C in tablet...
Ascorbic acid (vitamin C, MM 176.124 g/mol)) can be determined using an iodometric back titration. A...
Ascorbic acid (vitamin C, MM 176.124 g/mol)) can be determined using an iodometric back titration. A vitamin C tablet was dissolved in 60 mL of 0.3 M H2S04. To the dissolved tablet, 2 g of KI and 50.00 mL of 0.0105 M KIO3 were added, resulting in the formation of a dark orange solution indicating the presence of 13-. The resulting solution was titrated with 0.0685 M S2032- until the starch indicator turned purple. If the end point was observed...
A 1000mg vitamin C tablet was finely crushed and transferred to a beaker where it was...
A 1000mg vitamin C tablet was finely crushed and transferred to a beaker where it was diluted with 100ml of water. This solution was heated for a period of time before being filtrated. The filtrate was transferred to a 250ml volumetric flask where it was diluted to the appropriate mark. 25ml of that solution was pipetted out of the volumetric flask and added to a 250ml flask. 5ml of KI, 2.5ml of HCl and 1ml of starch indicator solution was...
Vitamin C Project Lab: Part B: Data analysis Calculate the grams of Vitamin C in your...
Vitamin C Project Lab: Part B: Data analysis Calculate the grams of Vitamin C in your Erlenmeyer. (as in titration #1 ) Calculate the grams of Vitamin C per tablet. Calculate a percent error by comparing your result to the tablet dose above. Determine the % composition of vitamin C in the tablet Build a data table similar to the one you used for titration # 1 to calculate the following: 1. 2 3. 4. Show all your work Trial...
I understand part a, I need help with B and C. Thanks! 6-B. Vitamin C (ascorbic...
I understand part a, I need help with B and C. Thanks!
6-B. Vitamin C (ascorbic acid) from foods can be measured by titration with 13: CH4O6 + + H2O = C,H,O + 30 + 2H Ascorbic acid Triiodide Dehydroascorbic acid FM 176.126 Starch is used as an indicator in the reaction. The end point is marked by the appearance of a deep blue starch-iodine complex when unreacted 15 is present. (a) If 29.41 mL of Iz solution are required...
4. A student analyzed an antacid tablet from a bottle of 48 tablets purchased at a...
4. A student analyzed an antacid tablet from a bottle of 48 tablets purchased at a discount store for $1.00. The mass of the tablet was 1.462g. After adding 25.00mL of 0.8000/M HCl solution to the tablet, the student back-titrated the excess HCI with 3.52 mL of 1.019M NaOH solution. (a) Calculate the number of moles of HCI added to the tablet (b) Calculate the number of moles of NaOH required for the back-titration (c) Calculate the number of moles...
measured concentration of vitamin C in fruit juice. ( mol/L) Type of juice Ppple Volume of...
measured concentration of vitamin C in fruit juice. (
mol/L)
Type of juice Ppple Volume of container: 200mL Volume per serving: aob mL Servings per container: % RDA of vitamin C per serving: 1007 Calculated concentration of vitamin C based on packaging: RDA for vitamin C: 90 mg O.45 mg/mL 2.55X 10o ,mol/L Calculated molar concentration of vitamin C based on packaging: (assume molar mass is equal to that of ascorbic acid, 176.12 g/mol) Titration Data: 0.00Sm Concentration of lodine...
Experiment Lab Team Members Finding Equilibrium Constants: The Solubility of Borax Report Sheet Part A: Titration...
Experiment Lab Team Members Finding Equilibrium Constants: The Solubility of Borax Report Sheet Part A: Titration of Room Temperature Borax: K Molarity of Standard HCl solution: 004 u Temperature of room temperature borate mixture (T): T, in 20.0c T, in к Trial Trial 2 Trial 3 if donel Final buret reading HCI, ml. Initial buret reading HCl, mL Volume of HCl used in Titration, ml. Moles HCI Moles Borate Molarity of Borate Molarity of Na Average of Borax: Part B:...
Report Sheet mass of bocx - 0 Part A: Titration of Room Temperature Borax: K Molarity...
Report Sheet mass of bocx - 0 Part A: Titration of Room Temperature Borax: K Molarity of Standard HCl solution: 0.2 M 3.005g Temperature of room temperature borate mixture (T.): T, ind0 °C T, in 293 K Trial 3 (if done) Trial Trial 2 Final buret reading HCl, mL 18.05 my 32.70ml Initial buret reading HCl, mL 5.40ml 18.05mL Volume of HCl used in Titration, ml1265my 14.65ml Moles HCI .00233 .00 293 00293 Moles Borate ? Molarity of Borate Molarity...
Need help with the following
1) Moles of I2 added & the moles vitamin C titrated
2) Grams of vitamin C in the sample & Grams of vitamin C
in the tablet
3) The average g/tablet
Trial 1 2song 10.4oolg rome loml T Part B: Vitamin C Tablet tablet strength mass tablet dilution volume volume titrated volumel, initial volume la final volumely added moles lz added moles vitamin C titrated g vitamin C in sample g vitamin C in tablet...
Ascorbic acid (vitamin C, MM 176.124 g/mol)) can be determined using an iodometric back titration. A vitamin C tablet was dissolved in 60 mL of 0.3 M H2S04. To the dissolved tablet, 2 g of KI and 50.00 mL of 0.0105 M KIO3 were added, resulting in the formation of a dark orange solution indicating the presence of 13-. The resulting solution was titrated with 0.0685 M S2032- until the starch indicator turned purple. If the end point was observed...
Vitamin C Project Lab: Part B: Data analysis Calculate the grams of Vitamin C in your Erlenmeyer. (as in titration #1 ) Calculate the grams of Vitamin C per tablet. Calculate a percent error by comparing your result to the tablet dose above. Determine the % composition of vitamin C in the tablet Build a data table similar to the one you used for titration # 1 to calculate the following: 1. 2 3. 4. Show all your work Trial...
I understand part a, I need help with B and C. Thanks!
6-B. Vitamin C (ascorbic acid) from foods can be measured by titration with 13: CH4O6 + + H2O = C,H,O + 30 + 2H Ascorbic acid Triiodide Dehydroascorbic acid FM 176.126 Starch is used as an indicator in the reaction. The end point is marked by the appearance of a deep blue starch-iodine complex when unreacted 15 is present. (a) If 29.41 mL of Iz solution are required...
4. A student analyzed an antacid tablet from a bottle of 48 tablets purchased at a discount store for $1.00. The mass of the tablet was 1.462g. After adding 25.00mL of 0.8000/M HCl solution to the tablet, the student back-titrated the excess HCI with 3.52 mL of 1.019M NaOH solution. (a) Calculate the number of moles of HCI added to the tablet (b) Calculate the number of moles of NaOH required for the back-titration (c) Calculate the number of moles...
measured concentration of vitamin C in fruit juice. (
mol/L)
Type of juice Ppple Volume of container: 200mL Volume per serving: aob mL Servings per container: % RDA of vitamin C per serving: 1007 Calculated concentration of vitamin C based on packaging: RDA for vitamin C: 90 mg O.45 mg/mL 2.55X 10o ,mol/L Calculated molar concentration of vitamin C based on packaging: (assume molar mass is equal to that of ascorbic acid, 176.12 g/mol) Titration Data: 0.00Sm Concentration of lodine...
Experiment Lab Team Members Finding Equilibrium Constants: The Solubility of Borax Report Sheet Part A: Titration of Room Temperature Borax: K Molarity of Standard HCl solution: 004 u Temperature of room temperature borate mixture (T): T, in 20.0c T, in к Trial Trial 2 Trial 3 if donel Final buret reading HCI, ml. Initial buret reading HCl, mL Volume of HCl used in Titration, ml. Moles HCI Moles Borate Molarity of Borate Molarity of Na Average of Borax: Part B:...
Report Sheet mass of bocx - 0 Part A: Titration of Room Temperature Borax: K Molarity of Standard HCl solution: 0.2 M 3.005g Temperature of room temperature borate mixture (T.): T, ind0 °C T, in 293 K Trial 3 (if done) Trial Trial 2 Final buret reading HCl, mL 18.05 my 32.70ml Initial buret reading HCl, mL 5.40ml 18.05mL Volume of HCl used in Titration, ml1265my 14.65ml Moles HCI .00233 .00 293 00293 Moles Borate ? Molarity of Borate Molarity...
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