Why is fractional distillation more efficient than simple distillation when purifying liquid mixtures?

Q: 1) Which of the diene isomers is not suitable for 1,2- and 1,4-addition as well as [4+2] cycloadditi...

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Q: On faucets and plumbing fixtures in areas with hard water, limescale accumulates over time. Limescal...

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Q: Consider a mixture that contains 0.4920 moles of l2 and 0.3 moles of H2 that is placed in a 2 L flas...

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Q: A student dissolves 10.6 g of ammonium nitrate (NH,NO, in 200. g of water in a well-insulated open c...

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Q: I'm not sure on how to define the following terms: hydrate, desiccant, deliquescent.

A: A compound can be defined as the  substance that is formed by combination of two or more different c...

Q: At what temperature (in degrees C) would a 0.00570 M solution of glucose in water exhibit an osmotic...

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Q: 1. Salts are forIned by the reaction of an acid and a base. For each of the following combination pr...

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Q: A solution containing 0.8330 g of a polymer of unknown structure in 170.0 mL of an organic solvent w...

A: Osmotic pressure can be defined as the  pressure that is required to be applied to a solution for pr...

Q: The pH of an aqueous solution of 0.555 M methylamine (a weak base with the formula CH3NH2) is .

A: Here we have to determine the pH of 0.555M aqueous solution of CH3NH2 ,Kb (CH3NH2) = 4.47×10^-4 .  

Q: Calculations: 1) Create a buffer solution of pH- 4.00 from 1M acetic acid (HA)and 1 M sodium acetate...

A: Answer: Buffer solution is the type of solution in which if we add small quantity of acid or base, t...

Q: explain metformins structure

A: Here we have to explain the structure of metformin.

Q: MASS PERCENT Complete the table: Mass Solute Mass Solvent Mass Solution Mass Percent 15.5 g 238.1 g ...

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Q: need help writing the theory on a oxidation reduction reaction like the re-dox reaction based on  P...

A: Redox reaction is a reaction in which oxidation and reduction takes place simultaneously. 

Q: Determine whether aqueous solutions of the following salts are acidic, basic or neutral: a.) AI(N...

A: Solution - According to the question - Given - (a) Al(NO3)3 - It is is salt of weak base (Al(OH)3) a...

Q: At 25 °C, Kc = 0.145 for the following reaction in the solvent CCI4. 2BRCI Br2+ Cl2 A solution was p...

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Q: which of the following will give a positive tollen's test? a) ethyl methyl ether b) propanal c) e...

A: Ans. b) propanal

Q: Which of the following has an electrophilic center or atom? Br C. Br A. B. D. Choose all that apply....

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Q: Multiply or divide the following measurements. Be sure each answer you enter con 183.34 m 0.55 s %3D...

A: The significant figure refers to particular digits in a number. According to the measurement rule, o...

Q: What is the major product obtained from hydroboration–oxidation of 2-methyl-2-butene? Draw the molec...

A: Hydroboration–oxidation reaction: Alkene gives an electrophilic addition reaction with borane. Alken...

Q: A mixture of nitrogen and oxygen gas is compressed from a volume of 92.0 L to a volume of 85.0 L, wh...

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Q: How to calculate COD ?

A: Calibration curve for data in Table-1 Best-fit Line of equation:  y = 0.0006x + 0.0149 and R² = 0.9...

Q: In this experiment the height of liquid measured using the capillaryrise method (h in equation 14 be...

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Q: Give the direction of the reaction, if K << 1.   A)  If the temperature is raised, then the reverse...

A: Given- K&lt;&lt; 1 

Q: What molecules are formed when the following molecule reacts with aqueous acid?

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Q: The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of a 0.12 mol L...

A: Given measurement from the question, [LiOH]= 0.12 M , V1= 83.6 mL [H2SO4] =? , V2=25.0 ml

Q: The base protonation constant K, of lidocaine (C4H2 NONH) is 1.15 x 10 . Calculate the pH of a 1.0 M...

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Q: Before performing a titration of vinegar itself, you first had to standardize the solution used to a...

A: Titration is a chemical process used fir quantitative analysis. A titrant is used to determine the c...

Q: oxygen atoms

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Q: 5) C-O and O-H bonds are stronger than C-C and C-H bonds, because C-O bonds and O-H bonds S1eolar. T...

A: Answer: Chemical reaction is a process in which old bonds get broken and formation of new bonds take...

Q: H H. H 4. 2-bromo-2-methylbenzene 3.

A: Here we have to write resonance structures and identify whether the given species are aromatic or no...

Q: Fe+ (aq) + SCN (aq) = FeSCN²+ (aq) A solution is made containing an initial Fe+] of 1.2 × 10-3 M and...

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Q: QUESTION 3 Looking at the structure of salicylic acid, it has two different OH groups (carboxylic ac...

A: Answer is given below

Q: In the titration of 145.0 mL of 0.4000 M HONH, with 0.2000 M HBr, how many mL of HBr are required to...

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Q: . When you have a pot of water on the stove, heat is transferred to the water. Describe the behavior...

A: Kinetic energy of molecules can be defined as the energy possessed by molecules due to the motion of...

Q: A pharmacist had 3 grams of hydromorphone hydrochloride. He used the following: 1⁄8gram, followed by...

A: Just we need to calculate amount of hydromorphone hydrochloride left.

Q: Q4) What two types of orbitals are interacting here (just use letter designations) and what would th...

A: When two orbital of comparable energy are interact with each other forms a molecular orbital.

Q: Predict the products of the electrolysis of an aqueous solution of sodium chloride in cell using pla...

A: Electrolysis is a spontaneous redox process Here we are required to find the product when aqueous so...

Q: For 2-4. Study these Haworth projections to answer the following for each of them. он H HO OH он но ...

A: Stereochemistry is branch of chemistry in which we deal with arrangement of atoms in molecules.

Q: Which of the following is true? a) To lower the pH of an indicator solution, add NaOH. To raise the ...

A: Correct option is (C) explanation is given below

Q: What are the techniques used to standardize a solution?

A: Standardization of a solution can be defined as a way of finding accurate cocentration of that solut...

Q: A rate is equal to 0.0200 M/s.  If [A] = 0.100 M and rate = k[A]0, what is the new rate if the conce...

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Q: Mechanism of Possible Action Specific Use Dehydrating agent Description Preventive Toxicity measures...

A: Since you have asked a question with multiple subparts we will answer the first one for you. To get ...

Q: A chemist prepares a solution of potassium chloride (KCI) by measuring out 0.22 g of KCl into a 250....

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Q: a de Broglie wavelength O 3/5 Imagine an alternate universe where the value of the Planck constant i...

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Q: A galvanic cell is set up by immersing a silver electrode in 1.0 M silver ion solution to form one h...

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Q: Before performing a titration of vinegar itself, you first had to standardize the solution used to a...

A: As most base solutions are secondary standardized, so we need to standardise base solutions with a p...

Q: Give the product for the following reactions, by drawing either the condensed structural formula or ...

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Q: What is Lambda max and why do we need it?

A: Note:  you have posted 2 different questions at same time. But As per bartleby guidelines I can solv...

Q: What is Issac Newton contribution to the atomic theory? Explain in detail.

A: The correct explanation is given below

Q: Starting with benzene synthesize the following compounds: a) o-bromonitrobenzene b) m-bromonitrobenz...

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