5. EXTRACTIONTo 1 ml. of bromine water in a test tube add .5ml chloroform or carbon tetrachloride. Notethe color of the liquid layers.Which layer is more colored?What do you call such liquids which do not form a homogenous mixture?Can you possibly make them homogenous?How?Transfer the mixture into a separatory funnel and add 2 ml. more of bromine water andadd 1 ml. more of chloroform of carbon tetrachlorides then shake to effect proper mixing. Letout the lower layer through the stem of the funnel. Again add another 2 ml. to chloroform orcarbon tetrachloride to the aqueous solution in the funnel and shake as before.How does the color of the chloroform or carbon tetrachloride layer compare with the firstextract?Howdoyouexplainthedifference?Is it possible that after several extractions the chloroform layer will become colorless?Why?

Answered: Image /qna-images/answer/9082de70-484c-4221-b64f-d0387aeeb51e.jpg

5. EXTRACTION To 1 ml. of bromine water in a test tube add .5ml chloroform or carbon tetrachloride. Note the color of the liquid layers. Which layer is more colored? What do you call such liquids which do not form a homogenous mixture? Can you possibly make them homogenous? How?

5. EXTRACTION To 1 ml. of bromine water in a test tube add .5ml chloroform or carbon tetrachloride. Note the color of the liquid layers. Which layer is more colored? What do you call such liquids which do not form a homogenous mixture? Can you possibly make them homogenous? How?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

3. A student obtains a liquid sample of green food coloring that is known to contain a mixture of two solid pigments, one blue and one yellow, dissolved in an aqueous solution of ethanol. Which of the following setups is most appropriate for the student to use in order to separate and collect a substantial sample of each of the two pigments? In A. D. bab
Ms. Tan came to the laboratory for blood tests because her physician suspected renal disease. The tests ordered were serum BUN, creatinine, and electrolytes. The blood specimen was obtained and processed. When the laboratory scientist received the serum to perform the tests, he noticed that the serum had a reddish tinge. What factor/s could cause this to happen to a serum specimen? 2. Is the sample acceptable for use? Elaborate your answer 3. What are the advantages of using plasma compared to serum in chemical analyses?
pour it 2. Still sleepy from a late night studying, you take the milk out of the refrigerator and pour it on your lemon juice to milk to make paneer (fresh cheese). As a group, craft a chemical explanation for the fact of coagulated milk onto your cereal. The last time you saw milk coagulate like that was when you added breakfast cereal. Unfortunately, by the time you notice the funny smell you have already poured clumps lemon juice to milk to make paneer (fresh cheese). As a group, craft a chemical explanation foea added that spoiled milk coagulates.
PART III: QUESTIONS Question 1: a ‘law’ in science is a general statement that is the conclusion of multiple observations. Formulate a law that describes what happens when a metal chloride solution is mixed with a silver chloride solution. Question 2: Formulate a law that describes what happens when a metal chloride solution is mixed with a sodium phosphate solution. Question 3: If an aqueous solution of titanium chloride, which is clear and purple, is mixed with a silver nitrate solution, predict what precipitate will form. Question 4: If an aqueous solution of titanium chloride, which is clear and purple, is mixed with a sodium phosphate solution, predict what precipitate will form.
B. Density of Liquid 1. Obtain a sample of distilled water (any quantity of your choice) anddetermine its mass and volume. Record your data on table 3 in theexperimental report 2. Calculate the density of the water sample using equation 1 Substance Density (g/mL) Substance Density (g/mL)Aluminum 2.7 Lead 11.3Brass 8.4 Zinc 7.1 Copper 8.9 Cork 0.26Tin 7.3 Silver 10.5Bone 1.80 Rhodium 12.4Iron 7.9 Platinum 21.45 Density of Liquid Density can be determined in the laboratory by measuring the mass and volume ofa substance. To measure the density of a liquid, first measure the mass of a clean,dry beaker. Then add…
......
Most analytical machines used in science can either measure absorbance of light, like the spectrophotometers used BioZ 151 and 152 labs, or can measure change in electrical conductance. In order to convert things like absorbance values into concentration data, a linear regression is used. In order to determine nitrite concentration in water samples, nitrite is reacted with several chemicals to produce a purple color. The absorbance of the solution is measured from known amounts of nitrite to produce a standard curve to analyze samples. Use the data in the provided table, or from the linked spreadsheet to make a graph and perform a linear regression using treadline. mg/L NO3 Absorbance 0 0.1 0.3 0.5 0.7 o 0.183 0.542 0.914 1.298) 1.61) In order for this to work, samples must be diluted prior measurement so that the concentration falls within the range of the standard curve. If a sample underwent a 30 dilution, and produce an absorbance value of 0.953, what is the resultant concentration…
How will you prepare 70 mL of 0.8% (w/v) CsCl? A. Put 0.56 g CsCl into a beaker then add 64.4 mL distilled water. B. Put 0.056 g CsCl into a beaker then add distilled water until it reaches the 70 mL mark. C. Add 5.6 g CsCl to 70 mL distilled water into a beaker. D. Add 0.56 g CsCl into a beaker then add 70 mL distilled water.
...Any substance that is not a mixture is A pure mixture A colloid A suspension A pure substance
Supply the missing information in the table. (Given in Blue). Answers in scientific notation should be in this sample format >>> 1.0 x 10-14
A student follows a lab protocol that asks them to make an ‘alcohol’ solution for an experiment. They make a 1.00 L solution by adding 575 g of an alcohol to water. Later they realize that there were three different alcohols sitting on the lab bench and they’re not sure which one they used. The alcohols are: methanol (CH3OH), ethanol (C2H5OH), and butanol (C4H9OH). They decide to boil the solution and they find that it boils at 106.40 °C. Using this information determine which alcohol the student used to make their solution. Density of water is 1.00 g/mL, Kb = 0.513 K/mc. Hint: you need to consider the molar masses of your alcohols.
You were tasked to separate the components of a mixture containing silica, sodium chloride and charcoal. TNāCI dissolves in water while silica and charcoal are not water-soluble. Only charcoal dissolves in carbon disulfide. a. Write a short experimental procedure to carry out the separation of the mixture. b. Given the following data, determine the percentage of charcoal, sodium chloride and silica. Mass (g) Mass of beaker 100.000 Mass of beaker + mixture 110.000 mass of evaporating dish 62.000 mass of evaporating dish + solid after evaporation of water 65.000 Mass of beaker + charcoal + silica after evaporation of excess water 117.000 mass of beaker + silica after decanting dissolved charcoal and drying 113.545