Using the volumes of NBS solution you just entered and the average molarity of the NBS standard solution, calculate...
Using the volumes of NBS solution you just entered and the average molarity of the NBS standard solution, calculate the milligrams of ascorbic acid in the 10.00 mL Vitamin C sample for each trial. Enter your calculated milligrams of ascorbic acid in the 10.00 mL Vitamin C sample, for each trial. Be sure to enter your calculated milligrams in the corresponding order that you entered your NBS volumes previously. The NBS volume you entered for entry #1 previously should correspond to the milligrams of ascorbic acid that you enter for entry #1 here. |
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My average molarity of NBS solution is .00227. Mass of tablet is 100 grams. I need help on how do I find the mass of ascorbic acid and then how do I find the mass percent of ascorbic acid.
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Using the volumes of NBS solution you just entered and the average molarity of the NBS standard solution, calculate...
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...
Standardization of Iodine Solution. i need help with the last 3 calculations for Moles, Molarity...
Standardization of Iodine Solution.
i need help with the last 3 calculations for Moles, Molarity
and Titer of I2.
Data and Calculations: Analysis for Vitamin C A. Standardization of lodine Solution Mass of Ascorbic Acid Sample, g Moles of Ascorbic Acid n = Sample 0.10qg max10-4 (MM = 176 g) Initial buret reading, mL Final buret reading, mL Volume of I2 added, mL Moles of I, consumed Molarity of I, moles/L Titer of I2, mg Asc/mL I2 41
Data and...
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...
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...
What is the molarity of the sodium hydroxide solution used in the titration? 0.4750 M In...
What is the molarity of the sodium hydroxide solution used in the titration? 0.4750 M In the space below, type in the balanced molecular equation between acetic acid and sodium hydroxide (Make sure to use subscripts) CH3CO2H (aq) NaOH (aq)CH3CO2Na (aq) H20 (aq) What was the average volume of sodium hydroxide (report the average that included the more reproducible volumes from your ttration)? 17.30 m. What was the % rsd you calculated using these volumes?,040 %- Calculate the molarity of...
calculate the molarity of KIO3 solution prepared lowed the same procedure as outlined in this experiment...
calculate the molarity of KIO3 solution prepared
lowed the same procedure as outlined in this experiment and you have obtained the Assume that you have followed the sa following data: Mass of KIO3 used Volume of KIO3 solution prepared 0.8000 g Volume of unknown ascorbic acid solution 250.0 mL Volume of KIO3 solution used to reach endpoint 15.00 mL 13.25 mL
3. Calculate the molarity of the acetic acid in the vinegar solution for each trial. 4....
3. Calculate the molarity of the acetic acid in the vinegar solution for each trial. 4. Calculate the average molarity. 5. Calculate the %mass acetic acid in the vinegar solution. 6. The vinegar for this experiment was store bought Heinz Vinegar. Does your answer to question 5 seem reasonable? 7. Write and appropriate lab procedure for this experiment. Use the data to inform your procedure. % Mass #DIV/0! Name 9 M NaOH Density (g/mL) 0.5167 1.002 Trial 1 Trial 2...
Questions: A. From the standardization data, calculate the molarity of the sodium hydroxide solution for each...
Questions:
A. From the standardization data, calculate the molarity of the
sodium hydroxide solution for each trail. Average the values and
enter the average in the Standardization Data Table.
B. From the equivalent mass data, calculate the equivalent mass
of the unknown acid for each trial. Average the values and enter
the average in the Equivalent Mass Data Table.
Acid-Base Titrations continued Standardization Data Table Trial 1 Trial 2 Trial 3 Mass KHP Final Volume, mL Initial Volume, ml Volume...
5. Determine the average value for the molarity of the acetic acid in vinegar. Show your...
5. Determine the average value for the molarity of the acetic acid in vinegar. Show your calculation 6. Determine the deviation between each individual molarity for acetic acid and the average value from question 4, above. Notice that the formula below uses absolute values: you only care about how big the difference is not whether cach trial value was higher or lower than the average. Deviation = (individual trial value)-(average value from #5) Trial Ideviation Trial 2 deviation Trial 3...
Standardization of Iodine Solution.
i need help with the last 3 calculations for Moles, Molarity
and Titer of I2.
Data and Calculations: Analysis for Vitamin C A. Standardization of lodine Solution Mass of Ascorbic Acid Sample, g Moles of Ascorbic Acid n = Sample 0.10qg max10-4 (MM = 176 g) Initial buret reading, mL Final buret reading, mL Volume of I2 added, mL Moles of I, consumed Molarity of I, moles/L Titer of I2, mg Asc/mL I2 41
Data and...
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...
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...
What is the molarity of the sodium hydroxide solution used in the titration? 0.4750 M In the space below, type in the balanced molecular equation between acetic acid and sodium hydroxide (Make sure to use subscripts) CH3CO2H (aq) NaOH (aq)CH3CO2Na (aq) H20 (aq) What was the average volume of sodium hydroxide (report the average that included the more reproducible volumes from your ttration)? 17.30 m. What was the % rsd you calculated using these volumes?,040 %- Calculate the molarity of...
calculate the molarity of KIO3 solution prepared
lowed the same procedure as outlined in this experiment and you have obtained the Assume that you have followed the sa following data: Mass of KIO3 used Volume of KIO3 solution prepared 0.8000 g Volume of unknown ascorbic acid solution 250.0 mL Volume of KIO3 solution used to reach endpoint 15.00 mL 13.25 mL
3. Calculate the molarity of the acetic acid in the vinegar solution for each trial. 4. Calculate the average molarity. 5. Calculate the %mass acetic acid in the vinegar solution. 6. The vinegar for this experiment was store bought Heinz Vinegar. Does your answer to question 5 seem reasonable? 7. Write and appropriate lab procedure for this experiment. Use the data to inform your procedure. % Mass #DIV/0! Name 9 M NaOH Density (g/mL) 0.5167 1.002 Trial 1 Trial 2...
Questions:
A. From the standardization data, calculate the molarity of the
sodium hydroxide solution for each trail. Average the values and
enter the average in the Standardization Data Table.
B. From the equivalent mass data, calculate the equivalent mass
of the unknown acid for each trial. Average the values and enter
the average in the Equivalent Mass Data Table.
Acid-Base Titrations continued Standardization Data Table Trial 1 Trial 2 Trial 3 Mass KHP Final Volume, mL Initial Volume, ml Volume...
5. Determine the average value for the molarity of the acetic acid in vinegar. Show your calculation 6. Determine the deviation between each individual molarity for acetic acid and the average value from question 4, above. Notice that the formula below uses absolute values: you only care about how big the difference is not whether cach trial value was higher or lower than the average. Deviation = (individual trial value)-(average value from #5) Trial Ideviation Trial 2 deviation Trial 3...
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