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PRELAB QUESTIONS (RESPOND ON A SEPARATE SHEET OF PAPER): 1. Assume that a drop has a...
please help on all questions in the pics... numbers: b, c, d, e, f 3. A...
please help on all questions in the pics...
numbers: b, c, d, e, f
3. A student collected the following data in the laboratory. mass of flask, g 52.87 mass of flask and sample, g 53.42 concentration of NaOH solution, M 0.101 initial buret reading, mL 23.78 final buret reading, mL Lab 9: Determining Ascorbic Acid in Vitamin C Tablets (b) what volume, in liters, of NaOH solution was used in the titration? O.101 X23.78 4.80356 Mb O.50 (c) How...
I have inputted the experimental data, and now all I need is the info for the...
I have inputted the experimental data, and now all I need is
the info for the yellow cells. :) please help!
Part A: Standarization of Iodine Molar Mass of Ascorbic Acid 176.12 Trial 1 0.1002 Trial 2 0.0995 Trial 3 0.1020 Mass of ascorbic acid (g) Moles of ascobic acid Initial Buret Reading (mL) Final Buret Reading (mL) Net Iodine Added (mL) Ascorbic Acid Back Titration Mass (g) Iodine Molarity 0.00 11.40 11.40 22.75 22.75 34.34 0.0000 0.0000 0.0000 Mean...
A vitamin C (ascorbic acid) tablet was dissolved in approximately 50 mL of distilled water and...
A vitamin C (ascorbic acid) tablet was dissolved in approximately 50 mL of distilled water and titrated with the standardized NAOH solution. From the results of this titration, the mg of ascorbic acid in the tablet was calculated. Molecular formula of ascorbic acid: C6H806 Volume of NaOH required to neutralize ascorbic acid in Vitamin C tablet (mL) 14.47 Concentration of NaOH in mol/L, 0.1964 Calculate the amount of ascorbic acid in the Vitamin C tablet in (mg). Answer:
You run a titration experiment to determine the mass of ascorbic acid (MM=176.12 g/mole) in a...
You run a titration experiment to determine the mass of ascorbic acid (MM=176.12 g/mole) in a vitamin C tablet. The tablet was dissolved in 100mL of water and the titration required 23.0 mL of 0.5M NaOH for complete neutralization of the acid, according to the following reaction: AscH2 (aq) + 2NaOH (aq) -> Asc^2- (aq) + 2H2O (l) + 2Na^+ (aq) a) Calculate the moles of NaOH used. b) Calculate the moles of acid in the solution. c) Calculate the...
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known...
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
I need help with the post lab questions based on the Data Table. whatever u can...
I need help with the post lab questions based on the
Data Table. whatever u can provide I would really appreciate it.
thank you
5. Complete Data Table 2. The neutralization reaction between ascorbic acid and NaOH is: HC,H,Os(aq) + NaOH(aq) - NaCH-04(aq) + H200) Data Table 2. Titration of an Ascorbic Add Solution Trial 1 Trial 2 Trial 3 Volume of ascorbic acid solution, ml 50.00 mL so.com so con NaOH buret reading before titration, ml 0.00 ml 5.23...
Let’s assume that during last lab you prepared a solution of NaOH. After standardization you determined...
Let’s assume that during last lab you prepared a solution of NaOH. After standardization you determined the concentration to be 0.113 M. This NaOH was then used to determine the concentration of ascorbic acid in a vitamin C tablet. To do this, a Vitamin C tablet was crushed and 0.200 g were placed in a flask with 50 mL of water. The vitamin C solution was then titrated with the standard NaOH. This was repeated twice, for a total of...
Partner: Name: Date Chem 180L Titration: Report Sheet Data Table Flask #1 Flask 2 Flask #3...
Partner: Name: Date Chem 180L Titration: Report Sheet Data Table Flask #1 Flask 2 Flask #3 Mass of KHP 0.526 g 0.434 g 0.492 g Final buret reading 50.00 mL 35.55 ml 19.85 ml Initial buret reading 35.55 mL 19.85 mL 7.50 mL Volume of NaOH used Moles of acid Moles of base used Concentration of NaOH Average concentration of NaOH Show calculation set ups below for Flask #1:
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...
Can you explain how to calculate this? B. Analysis of Aspirin Table 1. Titration data Molarity...
Can you explain how to calculate this?
B. Analysis of Aspirin Table 1. Titration data Molarity of NaOH: 0.1177 M Weight ASA claimed on label: 324 mg Trial 1 Trial 2 Trial 3 Trial 4 0.396 8 0.372 g 0.3758 0.3888 0.00 mL 15.45 mL 33.17 mL 0.00 mL Weight of ASA tablet (8) Initial volume reading in buret (mL) Final volume reading in buret (mL) Volume delivered (VH- V:) 15.85 mL 33.17 ml 48.92 ml 15.53 mL Moles of...
please help on all questions in the pics...
numbers: b, c, d, e, f
3. A student collected the following data in the laboratory. mass of flask, g 52.87 mass of flask and sample, g 53.42 concentration of NaOH solution, M 0.101 initial buret reading, mL 23.78 final buret reading, mL Lab 9: Determining Ascorbic Acid in Vitamin C Tablets (b) what volume, in liters, of NaOH solution was used in the titration? O.101 X23.78 4.80356 Mb O.50 (c) How...
I have inputted the experimental data, and now all I need is
the info for the yellow cells. :) please help!
Part A: Standarization of Iodine Molar Mass of Ascorbic Acid 176.12 Trial 1 0.1002 Trial 2 0.0995 Trial 3 0.1020 Mass of ascorbic acid (g) Moles of ascobic acid Initial Buret Reading (mL) Final Buret Reading (mL) Net Iodine Added (mL) Ascorbic Acid Back Titration Mass (g) Iodine Molarity 0.00 11.40 11.40 22.75 22.75 34.34 0.0000 0.0000 0.0000 Mean...
A vitamin C (ascorbic acid) tablet was dissolved in approximately 50 mL of distilled water and titrated with the standardized NAOH solution. From the results of this titration, the mg of ascorbic acid in the tablet was calculated. Molecular formula of ascorbic acid: C6H806 Volume of NaOH required to neutralize ascorbic acid in Vitamin C tablet (mL) 14.47 Concentration of NaOH in mol/L, 0.1964 Calculate the amount of ascorbic acid in the Vitamin C tablet in (mg). Answer:
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
I need help with the post lab questions based on the
Data Table. whatever u can provide I would really appreciate it.
thank you
5. Complete Data Table 2. The neutralization reaction between ascorbic acid and NaOH is: HC,H,Os(aq) + NaOH(aq) - NaCH-04(aq) + H200) Data Table 2. Titration of an Ascorbic Add Solution Trial 1 Trial 2 Trial 3 Volume of ascorbic acid solution, ml 50.00 mL so.com so con NaOH buret reading before titration, ml 0.00 ml 5.23...
Partner: Name: Date Chem 180L Titration: Report Sheet Data Table Flask #1 Flask 2 Flask #3 Mass of KHP 0.526 g 0.434 g 0.492 g Final buret reading 50.00 mL 35.55 ml 19.85 ml Initial buret reading 35.55 mL 19.85 mL 7.50 mL Volume of NaOH used Moles of acid Moles of base used Concentration of NaOH Average concentration of NaOH Show calculation set ups below for Flask #1:
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...
Can you explain how to calculate this?
B. Analysis of Aspirin Table 1. Titration data Molarity of NaOH: 0.1177 M Weight ASA claimed on label: 324 mg Trial 1 Trial 2 Trial 3 Trial 4 0.396 8 0.372 g 0.3758 0.3888 0.00 mL 15.45 mL 33.17 mL 0.00 mL Weight of ASA tablet (8) Initial volume reading in buret (mL) Final volume reading in buret (mL) Volume delivered (VH- V:) 15.85 mL 33.17 ml 48.92 ml 15.53 mL Moles of...
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