Answered: Explain

Science

Chemistry

Explain

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter9: Column Chromatography: Fluorenone, Cholesteryl Acetate, Acetylferrocene, And Plant Pigments

Section: Chapter Questions

Problem 5Q

See similar textbooks

Related questions

Q: In thin layer chromatography what is the mobile phase?

A: Chromatography is a technique used for the separation of non-volatile liquids.

Q: How much heat is required to raise the temperature of 125 grams of water by 10.0 degrees C?

A: Answer The quantity of heat required to raise the temperature of 125 g of water by 10.0°C is 5230 J....

Q: A vessel containing 39.9 of helium gas at 25°C and 106 kPa was inverted and placed in cold ethanol. ...

Q: Complete the table describing orbitals in the n=4 energy level: l Possible m values Orbital name(s...

A: Given information, l Possible m values Orbital name(s)' 0 0 __...

Q: Examine the 2-step mechanism below and identify the substance that appears to be a catalyst and anin...

A: The given reaction has two-step mechanism.

Q: Identify the conjugate base for each acid. conjugate base of H2SO4: conjugate base ...

A: Conjugate acid and base: Conjugate acid and base pair differs by one hydrogen ion. That is, when an...

Q: 3 In order to determine the heat capacity of their latest phone, CrabappleTM engineers cool the phon...

A: Heat capacity: The amount of heat required to increase the temperature of a substance by one-degree ...

Q: What is the mass of 1.6x10^21 argon atoms?

A: Molar mass of Argon is 39.95 g/mol i.e 1 mole of argon = 39.95 g of Argon Number of atoms of Argon i...

Q: when 2.876 g of a certain metal sulfide is roasted in air, 2.368 g of metal oxide is formed. if the ...

A: Generally the metal sulphide is burned and roasted in presence of air this process is called as a ro...

Q: b3(PO4)2 (Ksp 1.00x10-54) which will dissolve in 100 ml of water. salts in order of decreasing solub...

A: Part (a) To calculate the mass of Pb3(PO4)2 which will dissolve in 100 ml of water. Given: Ksp = 1.0...

Q: Write the formulas and names for the coordination isomers of[Fe(H2O)6]Cl2?

A: Coordination isomers occur when a coordinated ligand exchanges places with the uncoordinated counter...

Q: Which species below is a Lewis Acid? CI 2- + 4 [:ċi:] Co2+ COCI CI CI

A: A substance that can accept a lone pair of electrons is called Lewis acid.

Q: Codeine is a popular prescription pain killer because it is much less addictive than morphine. Codei...

A: Since Codeine is a weak base similar to ammonia. Hence it can be denoted by B. The protonation react...

Q: Using the equations 2 C₆H₆ (l) + 15 O₂ (g) → 12 CO₂ (g) + 6 H₂O (g)∆H° = -6271 kJ/mol 2 H₂ (g) + O₂ ...

A: The enthalpy for the reaction 6 C (s) + 3 H₂ (g) → C₆H₆ (l) is determined by considering all other t...

Q: Name the three alkenes using systematic names. H3C CH3 А. c=c H3C The name of compound A is: CH2 H2 ...

Q: How many molecules of carbon monoxide,CO, Comprise 4.82 grams?

A: First convert the given grams of CO to moles. Moles=MassMolar mass=4.82g28.01 g/mol=0.172 mol

Q: 6. A sample of argon has a volume of 1.2 L at STP. If the temperature is increased to 22°C and the p...

Q: 5. Consider the following equilibrium reaction: CACO3(8) – CaO(s) + CO2(g) a) Write the expression f...

A: A reversible chemical reaction can move in either forward or backward direction. The stage of a reve...

Q: Celsius and Fahrenheit Temperature Conversion Conver 100.0°F to degrees Celsius and to kelvins. Co...

A: Conversion of temperature units in between degree Celsius, Kelvin and Fahrenheit is given by, 1. ...

Q: Calculate the number of grams of caffeine (C8H10N4O2, molar mass = 194.19g/mol) needed to make 0.20L...

A: Molarity (M) of a solution is defined as the number of moles of solute dissolved per volume of the s...

Q: In this reaction, the symbol (aq) after BaCl2 means that BaCl2 (aq) + Na2CO3 (aq) à BaCO3 (s) + 2 Na...

A: Balance Chemical equation means number of atoms or ions should be equal in both side (reactant and p...

Q: If 100.0 mL of 0.505 M KOH is titrated with 0.864 M H₂SO4, how many mL of H₂SO₄ are needed to reach ...

A: We should equal equivalent of both KOH and H2SO4 to get volume of H2SO4. Equivalent = (molarity×volu...

Q: Predict the products for the following precipitation reactions. For each, write the balanced net ion...

A: Spectator ions are the ones that seems to remain unchanged in the overall reaction. Let's see the gi...

Q: in the lab molar mass of a volatile liquid why is it not necessary to know the mass of the volatile ...

A: Dumas method is used for the determination of the molecular weight of the unknown volatile organic s...

Q: How many grams of barium phosphate could you synthesize if you added an excess of barium chloride di...

A: Stoichiometry is mainly based on the calculation of molar mass and mass. These two values are used t...

Q: 2

A: Photon energy is energy carried by a single Photon Energy of photon is directly proportional to freq...

Q: Reactants In this reaction, the limiting reagent is _. Products Br Br-Br Br Br Br. - Al -Br Al Al. B...

A: In a balanced chemical reaction ,when there are 2 or more then 2 reactants are present then 1 of the...

Q: the best statement of the Law of Conservation of Mass?

A: According to law of conservation of mass, mass can neither be created nor be destroyed. It is const...

Q: OH H,SO, 4. CHC CH3 H3C TYPE:

A: In this reaction first alcohol will attack on H+ and after this water molecule will eliminate. and ...

Q: Determine the dissociation constants for the acids. Express the answers in proper scientific notatio...

A: From the value of acid dissociation constant (Ka) we can predict the strength of that acid.Greater i...

Q: CH3 |(a) CH3CH2-¢-CI + OCH,- CH3 ÇH3 (b) CH;-C-O + CH-X- CH3

Q: In principle, how many alkenes (including all stereoisomers) can be formed from the following compou...

A: Sodium methoxide is a strong base and it favors bimolecular elimination reaction (E2). In E2 reactio...

Q: A white solid is either Pb(NO3)2 or Zn(NO3)2. If an aqueous solution is prepared, which reagent will...

A: The solids given are Pb(NO3)2 and Zn(NO3)2. Since both the salts are soluble nitrate salts. Hence on...

Q: Given the balanced equation, Na2SO4(aq) + BaCl2(aq) -> 2 NaCl(aq) + BaSO4(s), how many moles of N...

A: Balanced equation: Na2SO4(aq) + BaCl2(aq) ----> 2 NaCl(aq) + BaSO4(s) The above equation suggest ...

Q: The rate constant of a reaction is 4.7X10⁻³ s⁻¹at 25°C,and the activation energy is 33.6 kJ/mol....

A: The term Arrhenius equation in chemistry can be defined as the equation which is used to dependence ...

Q: In the US, nutritional energy is reported in Calories (Cal). One nutritional Calorie is equal to one...

Q: Aldehydes are more reduced than carboxylic acids. O False O True

A: The oxidation state of Carbon in aldehydes and Ketones is calculated as:

Q: Q2. What are the products of the following reactions? Q3. 2-Bromopentane, when treated with ‎ ...

A: In a chemical reaction; the substance which involves in conversion is said to be reactant whereas th...

Q: An aqueous solution contains 0.496 M hydrocyanic acid. How many mL of 0.250 M potassium hydroxide wo...

A: Concentration of hydepocyanic acid is 0.496 M ph is 9.230 Volume of base added ➕

Q: reaction that is occurring (if Reaction CH2 CH3 CH-CH + HF H3C ΤΥΡΕ H,SO, H20 H3C CH2 CH3 YPE: II .C...

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for ...

Q: N2(g) + 3H2(g)--> 2NH3(g) how many grams of NH3 can be produced from 12.0g of H2 ?

A: The ratio of the molar mass of a substance to its given mass is called the number of moles of the su...

Q: Please answer both questions!

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

Q: Q1. For each reaction, give the expected substitution product and predict whether the mechanism will...

A: 2-Chloro-2-ethylbutane + CH3COOH → 2-Acetyl-2-eth...

Q: An unknown carbohydrate solution tested (+) with Molisch’s reagent. It formed a red precipitate with...

A: The carbohydrate could be RIBOSE

Q: 2. Balance the following chemical equation ( Fe;Oa(s) + H2(g) Fe(s) + H20(1)

A: A balanced chemical equation is that which contains the same number of atoms on both the reactants a...

Question

Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what happens in this situation: The solvent is above the line where the sample spots are

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

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

Describe what is chromatography?
What is paper chromatography please include the importance of using it
Preparing a Thin Layer Chromatography experiment there are some common mistakes. Explain what happens in this situation: Sample spots too big
Why chromatography is an important tool for analysis of organic compounds?
what is chromatography?
One method for quantitative determination of the concentration of constituents in a sample analyzed by gas chromatography is the area normalization method. In this method, complete elution of all of the sample constituents is necessary. The area of each peak is then measured and corrected for differences in detector response to the different eluates. This correction is accomplished by dividing the area by an empirically determined correction factor. The concentration of the analyte is found from the ratio of its corrected area to the total corrected area of all peaks. For a chromatogram containing three peaks, the relative areas were found to be 16.4, 45.2, and 30.2 in the order of increasing retention time. Calculate the percentage of each compound if the relative detector responses were 0.60, 0.78, and 0.88, respectively
The paper used in chromatography is made of molecules with___parts A polar B nonpolar
Gas Chromatography (GC) is one of the useful techniques in analytical chemistry. Give two important components in GC.
The uses of thin layer chromatography are: 1) To identify unknown compounds 2) Determine purity of products 3) Analyze reaction mixtures 4) To waste time in lab 5) Determine the melting point of the product U 6) Put an astronaut on the moon.
Describe chromatography analysis, the two essential phases used in paper chromatography and provide an example.
What is the application of chromatography (HPLC) and it's mechanism ?
what is chromatography? Explain different types of chromatography and explain how to seperate compounds. indicate stationary phase mobile phase.