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DATA (20 pts): Avg. Mass of Evap. Dish (empty) Mass of Salt Mass of...
Tast lab Experiment #7 The Solubility Product -Constant (Ksp) Objectives To calculate the Kop values of...
Tast lab Experiment #7 The Solubility Product -Constant (Ksp) Objectives To calculate the Kop values of some salts II. Background: Research and provide definition/principles for -K and how to obtain its value III Procedure dish for before performingthe actual procedure, prepare a perfectly tarred evaporating consistent "dry" mass by heating it, cooling and weighing. cat again, cool and weigh until the difference in masses is or <0.0010. wote: Use the same analytical balance and DO NOT touch the dish with...
If each bag of Lipton black tea contains 55 mg of caffeine, what is the maximum...
If each bag of Lipton black tea contains 55 mg of caffeine, what is the maximum amount of caffeine that you could extract from one using our procedure? Assume one bag and 40mL of tea-water at the end of initial solid-liquid extraction. The partition coefficient (K) for caffeine in methylene chloride is 7.2. How much caffeine could be extracted using our procedure if we had used ethyl acetate (K = 2.0) instead of methylene chloride? Explain why the amount does...
#5 Write the solubility product expression for PbCl2. Using the concentration for the Pb+2 and Cl-...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
need hep with these two questions! here is the information for the lab K2Cr₂O + H₂...
need hep with these two questions!
here is the information for the lab
K2Cr₂O + H₂ C₂04 2H2O sklor (C204) [H202₂/2 H2otca 2k12 2 cr=x2 (+8ly kzcrgo7+ I 142 C204-21420 2 k cellow). (1) 2 - 2 H2O toc -=S7 30-4521 2. Calculate the theoretical yield of K[Cr(C,0.),(H,0), 2H,0. 3. What is the theoretical percentage by weight of Cr in K[Cr(C,0.),(H,0), 2H,0? using the spectrophotometer at your desk, at the wavelength of maximum absorbance of the blue-green chromium ion, measure...
Calculate the % Al in the sample. Preparation of a stock solution of aluminum Accurately weigh...
Calculate the % Al in the sample. Preparation of a stock solution of aluminum Accurately weigh out approximately 1 g of the aluminum foil. Tear it up into small pieces, place the pieces into a covered 250 mL beaker and add 60 mL of 6M HCl. This should be carried out in the fume hood because the reaction is exothermic and leads to violent frothing and emission of vapors. Cool, quantitatively transfer to a 250 mL flask, rinsing with deionized...
Heat lamp or drying oven Hydrated copper chloride Distilled water Aluminum wire 30-ml beaker Glass rod...
Heat lamp or drying oven Hydrated copper chloride Distilled water Aluminum wire 30-ml beaker Glass rod Watch glass Buchner fiannel Hot plate Ethanol Füter paper CAUTION: Wear all safety equipment, follow all normal safety procedures and experiment as directed by your instructor follow instructions. Dispose of all liquid AND solid waste products from the 1. Weigh a clean, dry 30-mL beaker and record its mass to 3 decimal places. When-it-is-time,heat the beaker 2. Add approximately 1.00 gram of the hydrated...
I really just need all the equations, please and thank you. MATERIALS: cene nitric acid, HNO,...
I really just need all the equations, please and thank you.
MATERIALS: cene nitric acid, HNO, 3.0M sodium hydroxide, NaOH 6.0 M sulfuric acid, H2SO4 zine metal DI water PROCEDURE: Make sure you record detailed observations after almost every step. You will also need to write the balanced chemical equations for almost every step. Make sure you answer any questions associated with a step 1. Weigh approximately 0.5 g of copper metal and record the weight. Place the copper in...
I need help finding the theoretical yield (in grams) of triphenyl methanol product in this experiment....
I need help finding the theoretical yield (in grams) of
triphenyl methanol product in this experiment. PLEASE SHOW WORK, I
would like to learn the steps.
below is pictures of the procedure with amounts of chemicals
used
126 Experiment 10 EXPERIMENTAL PROCEDURE All glassware used in a Grignard reaction must be scrupulously dried, Dry the following glasstare in an af 110°C for at last 20 mini drying to Canadair 8 ml comical rial 5 ml con vial, air cond glass...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
Introduction: The technique used to separate an organic compound from a mixture of compounds is called...
Introduction: The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves because caffeine is more soluble in dichloromethane (140 mg/ml) than it is in water (22 mg/ml). However, there are...
Tast lab Experiment #7 The Solubility Product -Constant (Ksp) Objectives To calculate the Kop values of some salts II. Background: Research and provide definition/principles for -K and how to obtain its value III Procedure dish for before performingthe actual procedure, prepare a perfectly tarred evaporating consistent "dry" mass by heating it, cooling and weighing. cat again, cool and weigh until the difference in masses is or <0.0010. wote: Use the same analytical balance and DO NOT touch the dish with...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
need hep with these two questions!
here is the information for the lab
K2Cr₂O + H₂ C₂04 2H2O sklor (C204) [H202₂/2 H2otca 2k12 2 cr=x2 (+8ly kzcrgo7+ I 142 C204-21420 2 k cellow). (1) 2 - 2 H2O toc -=S7 30-4521 2. Calculate the theoretical yield of K[Cr(C,0.),(H,0), 2H,0. 3. What is the theoretical percentage by weight of Cr in K[Cr(C,0.),(H,0), 2H,0? using the spectrophotometer at your desk, at the wavelength of maximum absorbance of the blue-green chromium ion, measure...
Heat lamp or drying oven Hydrated copper chloride Distilled water Aluminum wire 30-ml beaker Glass rod Watch glass Buchner fiannel Hot plate Ethanol Füter paper CAUTION: Wear all safety equipment, follow all normal safety procedures and experiment as directed by your instructor follow instructions. Dispose of all liquid AND solid waste products from the 1. Weigh a clean, dry 30-mL beaker and record its mass to 3 decimal places. When-it-is-time,heat the beaker 2. Add approximately 1.00 gram of the hydrated...
I really just need all the equations, please and thank you.
MATERIALS: cene nitric acid, HNO, 3.0M sodium hydroxide, NaOH 6.0 M sulfuric acid, H2SO4 zine metal DI water PROCEDURE: Make sure you record detailed observations after almost every step. You will also need to write the balanced chemical equations for almost every step. Make sure you answer any questions associated with a step 1. Weigh approximately 0.5 g of copper metal and record the weight. Place the copper in...
I need help finding the theoretical yield (in grams) of
triphenyl methanol product in this experiment. PLEASE SHOW WORK, I
would like to learn the steps.
below is pictures of the procedure with amounts of chemicals
used
126 Experiment 10 EXPERIMENTAL PROCEDURE All glassware used in a Grignard reaction must be scrupulously dried, Dry the following glasstare in an af 110°C for at last 20 mini drying to Canadair 8 ml comical rial 5 ml con vial, air cond glass...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
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