Homework Answers
| Trail | Beaker | Graduate | Vol.Flask | Buret | Pepet | |
| A | 25.764 | 24.935 | 24.91 | 27.161 | 25.161 | |
| A | 25.672 | 24.865 | 25.087 | 27.688 | 25.521 | |
| B | 24.331 | 24.723 | 24.87 | 24.938 | 24.869 | |
| B | 24.227 | 24.017 | 24.834 | 24.754 | 24.868 | |
| C | 24.742 | 24.709 | 27.454 | 27.076 | 25.164 | |
| C | 24.227 | 24.017 | 24.834 | 24.754 | 24.824 | |
| D | 18.095 | 24.441 | 24.971 | 24.887 | 24.899 | |
| D | 19.004 | 24.761 | 24.948 | 24.848 | 24.911 | |
| Act Mean | 23.25775 | 24.5585 | 25.2385 | 25.76325 | 25.02713 | |
| Act Std Dev | 2.978303 | 0.363841 | 0.89907 | 1.293135 | 0.239659 | |
| per error | 3.903458 | 1.165084 | 1.241526 | 0.927724 | 0.035449 | |
| GIVEN | Mean | 22.384 | 24.848 | 24.929 | 26.0045 | 25.036 |
| Std Dev | 4.780042 | 0.123037 | 0.02687 | 1.635538 | 0.176777 |
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Trial Beaker Graduate Vol Flask Buret Pipet 25.764 24.935 24.91 27.161 25.161 25.672 24.865 25.087 27.688...
2. (8pts) (a) The overall calculation for many volumetric analyses is given by the following equation:...
2. (8pts) (a) The overall calculation for many volumetric analyses is given by the following equation: % Unknown = (factor)(Wt. Of Std.)(Vol. Titrant of Unknown) x 100 (Vol. Titrant Standard)(Wt. Of Unknown) Student Lucy used a wet flask as the container to weigh his standard, while student Jackie used a dry flask, whose calculated % Unknown is higher? (b) If you are asked to measure 50 mL of distilled water, which of the following items you can use? A. Beaker...
Experiment 17A. A Solubility Product Constant Procedure Getting Started 1. Obtain a 10 ml pipet, ...
question#1
Experiment 17A. A Solubility Product Constant Procedure Getting Started 1. Obtain a 10 ml pipet, a 50 mL buret, and 2 pieces of 120 cm filter paper Preparing Saturated Solutions of M10J MIO), is an insoluble divalent iodate salt. The identity of the cation M-is unknown. 1 Prepare MIO,), by adding S0 ml of o.2 M KIO, to 20 mL of 1 Molar M(NO,J, in a 150 mt 2. Stir the mixture vigorously with a stirring rod. A white,...
Concentration of NaOH = 1600 x10- Molar Sodium hydroxide Nach Trial 1 Trial 2 Trial Trial...
Concentration of NaOH = 1600 x10- Molar Sodium hydroxide Nach Trial 1 Trial 2 Trial Trial 4 2.60/1.20 1.40/1.30 28.20 29.10.26.1026.50 Volume of NaOH added Initial buret reading Final buret reading Moles of NaOH added Moles of HCl reacted Molarity of diluted HCI Molarity of undiluted HCI Average molarity of undiluted HCI Precision PROCEDURE 1. Obtain approximately 40 mL of an unknown acid in an Erlenmeyer flask from your teaching assistant. 2. Clean your 250-ml volumetric flask (contains exactly 250.00...
Concentration of NaOH = 1600 x10- Molar Sodium hydroxide Nach Trial 1 Trial 2 Trial Trial 4 2.60/1.20 1...
Concentration of NaOH = 1600 x10- Molar Sodium hydroxide Nach Trial 1 Trial 2 Trial Trial 4 2.60/1.20 11.40/1.30 28.20 29.10.26.1026.50 Initial buret reading Final buret reading Volume of NaOH added Moles of NaOH added Moles of HCl reacted Molarity of diluted HCI Molarity of undiluted HCI Average molarity of undiluted HCI Precision PROCEDURE 1. Obtain approximately 40 mL of an unknown acid in an Erlenmeyer flask from your teaching assistant. 2. Clean your 250-ml volumetric flask (contains exactly 250.00...
Calculate the concentration of the standard HCl solution you prepared. Determine this concentration for each trial...
Calculate the concentration of the standard HCl solution you
prepared. Determine this
concentration for each trial and the average and standard
deviation for all three trials.
Part B-Preparation and standardization of an HCl Solution 1. Before you can titrate your saturated Ca(oH)a solutions, you must prepare and standardize a dilute solution of Hcl. With a graduated cylinder measure at least 6 mL of the stock Hcl lution, transfer it to a 125 mL Erlenmeyer, and dilute to approximately 100 mL...
I need it right now, please help me?? PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
2. (8pts) (a) The overall calculation for many volumetric analyses is given by the following equation: % Unknown = (factor)(Wt. Of Std.)(Vol. Titrant of Unknown) x 100 (Vol. Titrant Standard)(Wt. Of Unknown) Student Lucy used a wet flask as the container to weigh his standard, while student Jackie used a dry flask, whose calculated % Unknown is higher? (b) If you are asked to measure 50 mL of distilled water, which of the following items you can use? A. Beaker...
question#1
Experiment 17A. A Solubility Product Constant Procedure Getting Started 1. Obtain a 10 ml pipet, a 50 mL buret, and 2 pieces of 120 cm filter paper Preparing Saturated Solutions of M10J MIO), is an insoluble divalent iodate salt. The identity of the cation M-is unknown. 1 Prepare MIO,), by adding S0 ml of o.2 M KIO, to 20 mL of 1 Molar M(NO,J, in a 150 mt 2. Stir the mixture vigorously with a stirring rod. A white,...
Concentration of NaOH = 1600 x10- Molar Sodium hydroxide Nach Trial 1 Trial 2 Trial Trial 4 2.60/1.20 1.40/1.30 28.20 29.10.26.1026.50 Volume of NaOH added Initial buret reading Final buret reading Moles of NaOH added Moles of HCl reacted Molarity of diluted HCI Molarity of undiluted HCI Average molarity of undiluted HCI Precision PROCEDURE 1. Obtain approximately 40 mL of an unknown acid in an Erlenmeyer flask from your teaching assistant. 2. Clean your 250-ml volumetric flask (contains exactly 250.00...
Concentration of NaOH = 1600 x10- Molar Sodium hydroxide Nach Trial 1 Trial 2 Trial Trial 4 2.60/1.20 11.40/1.30 28.20 29.10.26.1026.50 Initial buret reading Final buret reading Volume of NaOH added Moles of NaOH added Moles of HCl reacted Molarity of diluted HCI Molarity of undiluted HCI Average molarity of undiluted HCI Precision PROCEDURE 1. Obtain approximately 40 mL of an unknown acid in an Erlenmeyer flask from your teaching assistant. 2. Clean your 250-ml volumetric flask (contains exactly 250.00...
Calculate the concentration of the standard HCl solution you
prepared. Determine this
concentration for each trial and the average and standard
deviation for all three trials.
Part B-Preparation and standardization of an HCl Solution 1. Before you can titrate your saturated Ca(oH)a solutions, you must prepare and standardize a dilute solution of Hcl. With a graduated cylinder measure at least 6 mL of the stock Hcl lution, transfer it to a 125 mL Erlenmeyer, and dilute to approximately 100 mL...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
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