Chromatography is done on a mixture containing a drug. The drug has an R value of 0.66. The diagram is not drawn to scale. Which spot on the chromatogram represents the drug? solvent front A B 15 cm 12cm 9.9 cm F0.66 cm baseline A В

Chromatography is done on a mixture containing a drug. The drug has an R value of 0.66. The diagram is not drawn to scale. Which spot on the chromatogram represents the drug? solvent front A B 15 cm 12cm 9.9 cm F0.66 cm baseline A В

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU3: Weather: Phase Changes And Behaviour Of Gases

SectionU3.2: Raindrops Keep Falling: Measuring Liquids

Problem 6E

See similar textbooks

Related questions

Q: Say you glued two samples together; a 4.60 gg sample of acrylic with a density of 1.11 g/mLg/mL…

A: It is given that: Mass of acrylic sample (m1) = 4.60 g Density of acrylic sample = 1.11 g/mL Mass of…

Q: A mixture of cyclohexane (b.p 81 °C) and toluene (b.p 110.8 °C) need to be separated and collected…

A: Given that, a mixture of cyclohexane (b.p 81 °C) and toluene (b.p 110.8 °C) needs to be separated…

Q: Round this addition of measurements to proper sig figs: 23 cm + 111.24cm + 0.0045 cm

A: At the time of addition , round off to minimum decimal number.

Q: Indicate whether the following statement is true or false. It is not possible to carry-out the…

A: no we cant subtract both quantities as: pL is picolitre that is Full name: picoliter Plural form:…

Q: CM 12 China Shape Sheet Version D CM China 12 10 CM 12 China 2 3

Q: Express your answer to the appropriate number of significant figures 2.5-1.803 2.5-1.803

A: Significant figures rule for addition and subtraction From this rule we get that ; The Final…

Q: A student sets up a paper chromatogram and places a spot of purple food dye on the origin. After…

Q: Paper chromatography was used to separate the components of a food dye. The food dye separated into…

Q: 2) Select which of the following pieces of laboratory experiment could be used when measuring out…

A: To select the apparatus used for measuring out 20.00 mL CoCl2

Q: 4. For a liquid substance with different boiling points, which separation technique wouid be best…

Q: True Value 124 g True Value 1.75 lb 1. 6. Trial # 1 120 g Trial # 1 2.75 lb Trial # 2 121 g Trial #…

A: 1. Mean of the experimental value = (120+120+121)/3 = 120.3 True value = 124g Percentage error = […

Q: What is the result of the following calculation to the correctnumber of significant figures?(6.266 −…

A: (6.266 − 6.261) ÷ 522.0 = ( 0.005) ÷ 522.0 = 9.579 x 10-6 Number of significant figures are 4.

Q: There are 2 parts to this question. pt. 1. Circle the metal most likely used in the jewelry samples…

A: it is relative error in any experiments which tells about accuracy of measurement, lower the…

Q: A 125mL flask and stopper have a mass of 79.310g. A 25.0mL sample of an unknown volatile liquid is…

A: Answer:- This question is answered by using the simple concept of calculation of density using the…

Q: A buret delivers water at 25 "C from the 0.05 mL mark down to 20.00 mL. The mass of the water is…

A: Given the volume of water is measured at 25 oC. At 25 oC, the density of water, d = 0.997044 g/mL…

Q: The density of methanol at 20C is 0.791g/mL. What is the mass in grams of 280mL sample.

A: Given : Density of methanol = 0.791 g/mL And volume of sample = 280 mL

Q: How many micrograms are in 2.71 lbs? (1 1b = 454 g, 1g = 1000 mg, & 1 mg = 1000 ug) %3D a. 2.71 x…

A: Pound(lb), grams(g), kilograms(kg)- these are different units of mass. They can be interconverted…

Q: 1. A given grain sample was found to contain 8.65 percent moisture. A 5.2146 g as received sample…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Determine the number of significant figures

A: Since you have posted a question with sub-parts , we are entitled to answer the first three…

Q: Geddy and Neil are measuring the melting point of their starting material prior to their lab…

A: Melting point is done so as to measure the melting point of samples and check the purity of…

Q: How many picograms are in 4.28 x 10^-11g?

A: 1 picogram = 10-12 grams

Q: Two liquids, A and B are immicible. Liquid A has a density of 0.89 g/mL. Liquid B has a density of…

A: The solution is given below -

Q: A small rock was placed in a 100 ml graduated cylinder that has an initial water level at 12.0 ml.…

Q: If a tare on a scale registered -0.500 and the sample and watch glass together weighed 44.50, and…

A: If a scale is tared at a negative value, then we have to add that value with the observed value in…

Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

A: The brick has a shape of rectangle which has volume , V = L x W x H Where L = length W = width H =…

Q: "unknown A ran 12" 2 1 C: \Bruker\TopSpind.0.9 unknown A run 12 10 [ppm] OL 12 3.0122 6960'Z 6996'I…

Q: 100- 98- 96- 94- 92- 90- 88- 86 84 82 80 78- 76+ 4000 3533 Aña 3402.5 3500 3002.41cm-1 2916.20pm-1…

A: The IR tells about The functional group present in the molecules.

Q: The mass of a proton is about 1.007276 . Convert this number into grams and picograms. The radius of…

Q: When placed in a pycnometer, 20 g of salt displaces 7.6 g of kerosene. If the mass density of…

A: Given: Mass of salt = 20 g Density of kerosene = 0.833 g/cm3 Mass displaced by kerosene = 7.6 g

Q: Gas chromatography requires a sample size. O Much, much less than a gram O A gram or less 1 to 10…

A: The process of separating compound from a mixture by injecting the liquid or gaseous sample into the…

Q: Gasoline and water do not mix. Regular grade (87 octane) gasoline has a lower density (0.73 g/mL)…

A: Given : density of gasoline = 0.73 g/mL Density of water = 1.00 g/mL Mass of gasoline = 34.0 g Mass…

Q: A method of analysis yields masses of gold that are lower by 0.40 mg. Calculate the percent relative…

A: The percentage relative error is percentage discrepancy in finding out the exact value of a…

Q: Convert 22 in. to cm's. (1 inch = 2.54 cm) %3D O 56 cm O 54.2 cm О 25.5 ст О 88 ст

A: The given unit inch can be converted into the centimeter unit by knowing the relationship between…

Q: Alie measures out a sample of naphthalene using a graduated cylinder. She reads the measurement as…

Q: One milliliter (mL) of pure water has a mass of 1 gram (g). You add 100 mL of water and 100 mL of an…

A: A separatory funnel is used to separate two immiscible liquids, 2 layers are seen in a separatory…

Q: What is the density of a metal sample if 15.12-g sample is added into a graduated cylinder increased…

A: Mass of the sample = 15.12 g Calculation of volume of the sample: Volume=40.60 mL-35.00 mL=5.6 mL

Q: Identify the chromatography term that corresponds to each definition. A value that quantifies the…

A: We are having the four terms that we have to use to define each statement . We should have knowledge…

Q: A cubic object has a side length of 3.17 cm. It is found to be a pure substance with a mass of…

A: Density of the substance can be determined by using the formula given below as;…

Q: A solution was prepared by dissolving 16 g of CaCl2 in 72g of water and has a density of 1,180 g /…

Q: How many milligrams are in 0.930 mmole CHC16H17N»HNS2 (A.wt: C-12, H=1, N=14, S-32) 0.305mg…

A: Given: The number of moles of 0.930 mmol=0.930×10-3 The molar mass of CHC16H17N2HNS2=(204+19+42+64)…

Q: A class of chemistry students measured the density of an unknown liquid. If the correct density of…

Q: Given the following information, calculate the % error between the experimental value and the…

Q: 1. Research on the limitation of accuracy of the following instruments: • analytical balance •…

Q: Pics 1 Word: Make a scientific guess of the word/s that can represent the pictures presented in each…

A: These pictures are related to the current situation of the pandemic that is COVID 19 . These are…

Q: 43.0 t 40.0 1 25.3 d 22.0 q b. 70 10 PPM m.

A: The question is based on the concept of Spectroscopy. we have to analyse the spectra provided and…

Q: 108 mm2 = __________km2 A. 10-6 B. 10-4 C. 102 D. 106 E. 104

Q: 2) Select which of the following pieces of laboratory experiment could be used when measuring out…

A: 2) When we are asked to measure volumes of reagents for example here we are asked to measure 20ml of…

Q: Select the different types of Chromatography FTIR LC-MS HPLC GC-FID IC ICP-MS IC-MS ICP-OES IC-OES…

A: A question based on analytical separation that is to be accomplished.

Q: What is the actual mass of an organic liquid (d= 0.740 g/mL) which weighed 93.236 g in an analytical…

A: Solution- Analytical balance -8 g → 1mLSo, 93.236 g → 93.236 g8=11.6545 mL

Question

Chromatography is done on a mixture containing a drug. The drug has an R, value of 0.66.
The diagram is not drawn to scale.
Which spot on the chromatogram represents the drug?
solvent front
B
15 cm
12cm
9.9 cm
C
F0.66 cm
baseline
A
В
D

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

pls complete the 2nd table given the data1. 500.0 mL 0.2 M KI2. 500.0 mL 0.2 M KCl3. 500.0 mL 0.1 M K2S2O84. 500.0 mL 0.1 M K2SO45. 500.0 mL 4.0 mM Na2S2O3 (from Na2S2O3∙5H2O)
A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90×10−2 M Cu.2.90×10−2 M Cu. Calculate the mass of copper in the Jefferson nickel used to make the first solution.
A mixture of cyclohexane (b.p 81 °C) and toluene (b.p 110.8 °C) need to be separated and collected without jeopadizing the purity of each component. What is the best method to isolate and collect each component? A. gas chromatography, because they can be separated and collected easily due to their boiling points differences. B. simple distillation, because their boiling points are differerent from each other by approximately 30 °C C.fractional distillation, because their boiling points are close to one another D.TLC, because these two compounds can be separated easily using an organic solvent such as hexanes
Chromatography is based on molecules differing physical properties as a means of separating compound mixtures. Group of answer choices True False
In the UV assay of paracetamol you are required to weigh tablet powder “…containing 0.150 g of Paracetamol…”. If the stated content of paracetamol per tablet is 500 mg and the weight of 20 tablets is 11.223 g then the amount of paracetamol tablet powder to be weighed is
Give typed solution not written How many milligrams in 1.26 scruples? 3 scruples = 1 dram 1 oz = 8 drams 1 apothecary lb = 12 oz 1.2153 apothecary lb = 1 English lb 1kg = 2.20462 English lbs Round answer to proper sig figs.
You are in the lab preparing copper solutions for the MICRO lab this week. You measure 0.1035 (±0.0001) g of copper metal and dissolve it in a few mLs of concentrated nitric acid. This solution is diluted to the mark with water in a 50.00 (±0.05) mL volumetric flask. You withdraw a 5.00 (±0.01) mL aliquot with a volumetric pipet and deliver it to a 100.00 (±0.08) mL volumetric flask. After dilution to the mark with water, calculate the concentration and the absolute error in a solution of copper in ppm (assume ppm = 1 µg/g = 1 µg/mL = 1 mg/L).
Sources of error: Method 1 Equipment:About ten grams of NaHCo3. 10 ml distilled waterSmall beaker Electronic balanceGlass dome10 ml graduated cylinderGlass rod Safety instructions :Wear safety goggles Wear a smockBe deilcate with materials Method:Measure out 10 ml of distilled water using the graduated cylinder. Transfer the water to the small beaker.Weigh out the total amount of sodium chloride available for the experiment.Weigh out 0.5 g NaHCo3. Add NaHCo3 to beaker containing water. Stir solution with glass rod until dissolved.Repeat step 3 until it becomes more difficult to dissolve the NaHCo3. Note the number of times 0.5 g NaHCo3 is added.Continue adding one grain of NaHCo3 at a time until it is no longer possible to dissolve it.Once saturation is reached, NaHCo3 crystals form at the bottom of the beaker.Measure the mass of NaHCo3 not added to determine the total amount of NaHCo3 that has exceeded the solubility limit.
The nitric acid solution from part 1 is 70.0% acid and 30.0% water by mass. Using the accepted density of solution as 1.411 g/ml how many ml. must be measured out to supply 15.6 grams of acid? [Hint: think of mass percent as a conversion factor]
A student determines the concentration of an unknown sample using two different methods. Each method has three different trials; the average, standard deviation, and percent error produced by each method is listed below. Method 1 Average: 10.56 M NaOH Standard deviation: 1.35 M NaOH Percent error: 1.25% Method 2 Average: 10.92 M NaOH Standard deviation: 1.02 M NaOH Percent error: 3.45% Which method was more accurate? How can you tell?
Help me find the % deviation : #1: 7.77 #2 : 7.78 #3: 7.74 i know the average is 7.76 Then what do I do ?and I don't know if I use significant figures for this or not.
What is the correct burette reading? 25.3 mL 24.15 mL 25.85 mL 24.1 mL