What is the point of doin a reaction under reflux

Q: Calculate the [KI] for Run A3 in Item 3 of Part I in your report pages. You will need the volumes on...

A: Given: Concentration of KI in stock solution = 0.20 M Volume of KI stock solution taken = 20.0 mL. V...

Q: Which has the highest pKa? O a carboxylic acid (RCOOH) O a hydrocarbon (ie, an alkane) a mineral aci...

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Q: Which one of these molecules would you expect to be the stronger base? Justify your answer.

A: Base is substance which can easily release it's lone pair of electrons to the other substance.

Q: Molar en thal phy

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Q: The reaction of nitrogen dioxide with carbon monoxide NO, + CONO + Co, is second order in NO, and ze...

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Q: Consider the zeroth order decomposition of A with an initial concentration o 6.0 M. If k= 0.0170 s-1...

A: For zero order reaction..  Intercept form of zero order reaction, Ct= C0 - kt.. Where, Ct is concent...

Q: activation energy

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Q: Phosphoric acid is a triprotic acid with the Ka values of 7.25 10-3, 6.31 10-8 and 3.98 10-13 respec...

A: Millimoles of H3PO4 taken   =Molar concentration of acid×Volume of acid=0.1000 M×25 mL=2.5 mmol  

Q: 2. The population of a country doubles in 50 years. HOW Imany juut habitants. 3. Radium decomposes a...

A: Amount of radium is decomposing with respect to time and is proportional to amount present. Half of ...

Q: A reaction in an anabolic pathway is found to have a large negative Gibbs Free energy. How likely is...

A: Metabolism is chemical reaction that occurs in the living organism.There are two ways-Anabolic and c...

Q: The equilibrium constant, K., for the following reaction is 83.3 at 500 K. PCI3(g) + Cl2(9)=PCI5(g) ...

A: Given Reaction:-  PCl3(g) + Cl2(g) -----> PCl5(g)  Value of equilibrium constant, Kc = 83.3 Molar...

Q: Using the compound elements below. Find the following i. Non-Bonding and Bonding Domain ii. Molecu...

A: VSEPR theory: The structure of a molecule can be determined by using the VSEPR theory. According to ...

Q: O CHEMICAL REACTIONS Cameror 1/5 Limiting reactants Liquid hexane (CH,(CH,)¸CH,) will react with gas...

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Q: Which of the following molecules contains an inversion center: CO2, H2O, NH3, CH4, CeHe, PCIS, PCIs,...

A: The important step to solve this problem is to examine whether in the given molecule the similar ato...

Q: Determine the concentrations of hydronium and hydroxide ions in 3.88 x 10-3 M aqueous perchloric aci...

A: Acid are those compound which does dissociate into ions and furnish hydrogen ion. acid can be of two...

Q: A 1 gallon bottle of a certain brand of bleach costs $2.19. Determine the cost to buy enough bleach ...

A: unit coversions.

Q: write disocierion re action for rhe waole culesand label conj ugate acid base pairs . HA,HCIO,

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Q: 2. How many molecules are present in 15.47 g of acetic acid?

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Q: KHP

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Q: I mol Brz constitutionel Son ->

A: Constitution isomers are those which have same molecular formula but different structure.  Br2 addit...

Q: 1. pH of a substance at 7 is how many times the concentration of a pH of 6.

A: Note - Since you have asked multiple question, we will solve the first question for you. If you wan...

Q: Protein Concentration Standard Curve 0.7 y= 0.042x + 0.0378 R = 0.9867 0.6 0.5 0.4 0.3 0.2 0.1 10 12...

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Q: Reactions Oxidation / reduction /neither: CH3CH2OH Cro3 CH3CH H2C=CHCCH, + NH3 H2NCH2CH,ÖCH3 > Br 1....

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Q: A solution of iodine in carbon tetrachloride has a density of 3.22 g/mL and a concentration of 3.00 ...

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Q: Ammonium perchlorate (NH,CIO4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts wi...

A: Given : We have to calculate mass of water.

Q: Glycine is a diprotic acid, which can potentially undergo two dissociation reactions, one for the a-...

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Q: Born-Haber cycle; I don’t know how to formulate it for this reaction.

A: Bond enthalpy for the breaking of O2 = 498kJ/mol But we need bond enthalpy for 1/2O2 = 498/2kJ/mol =...

Q: 2/Identify each substance as Acid base Conjugate acid Conjugate base

A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a subst...

Q: A typical vitamin C tablet (containing pure ascorbic acid, H2CgHgOg) weighs 500 mg. One vitamin C ta...

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Q: S, For ench renction. A7 write n word erntin B) Write he balmced olecuir equton C) write Hhe lonlmce...

A: 1) The reactants given are AgNO3 (aq) i.e. silver nitrate and NaOH (aq) i.e. sodium hydroxide.  

Q: Directions: Give the charge of the atoms. 1. 2. + + ++ ++ 3. + + + + ++

A: The number of protons and electrons in ions are given as,  

Q: molality

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Q: Indicate whether the salts below would form solutions that are acidic, basic, or neutra in pH. Cu(NO...

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Q: 5. Draw the Lewis Structure of Phosphate ion. Does it have resonance structure? Ex

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Q: Gaseous butane (CH, (CH,) CH, will react with gaseous oxygen (0,) to produce gaseous carbon dioxide ...

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Q: Consider the C-H bond associated with the indicated carbons. Which C-H bond in the following compoun...

A: Soln 3 Note_tertiary carbon hydrogen bond is more readily to be broken

Q: A major component of gasoline is octane (C,H,8). When octane is burned in air, it chemically reacts ...

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Q: Consider a reaction A + B C for which = k[A][B]2. Each of the following boxes represents a reaction ...

A: The given chemical reaction is as follows: A + B → C The stoichiometry of the reaction states that t...

Q: SOCI, CH3CH2CH,CH2OH 3. 4. H3C OH HBr Ether

A: These two reactions are mechanism based answer . First one is a chlorination reaction in presence of...

Q: Match the carbon reservoir exchange with the chemical equation that occurs: 1.                     ...

A: we are to match the relevant carbon reservoir with reaction that takes place.  

Q: 1. BF3 2. PCl5 3. H2O

A: Answer - Lewis structure - Lewis structures, also known as Lewis dot formulas, Lewis dot structures,...

Q: 20. What is the approximate total number of atoms in 1.0 mole of lithium?

A: In this question we have to choose Correct option of the approximate total number of atom in 1.0 mop...

Q: limiting reactant

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Q: 90 gm glucose dissolve in 500 g water. Molality of the solution is Select one: a. 4 b. 1.5 c. 1 d. 2

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: volume

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Q: Given the reaction: CuSO4-3H2O CuSO4-2H2O + H2O the delta H=8000 and delta G = 3800 at 25°C. Calcu...

A:            CuSO4.3H2O ↔CuSO4.2H2O + H2O                                      ∆H = 8000∆G = 3800   T1...

Q: Glucose, C6H12O6, in water is often used for intravenous feeding. Sometimes sodium ions are added to...

A: Given that : Mass of Na+ = 2.0 mg = 0.002 g Mass of glucose = 6.00 g Mass of water (solvent) = 112.0...

Q: A side reaction in the manufacture of rayon from wood pulp is 3CS2 + 6NAOH → 2NA2CS3 + Na2CO3 + 3H2O...

A: The balanced reaction given is, Given: Moles of NaOH taken = 2.78 mol. Volume of CS2 taken = 92.5 m...

Q: In the mid-1930s a substance was isolated from a fungus that is a parasite of ryes and other grasses...

A: Given that, lysergic acid diethylamide (LCD, C20H25N3O). It is a weak base, having Kb = 7.6×10-7. Th...

Q: 0.508 g of KHP was mixed with 25 mL of H20 to titrate a NaOH solution. It took 32 mL of the KHP solu...

A: Given as 0.508 g of KHP was mixed with 25 mL of H2O KHP solution required to reach the endpoint is 3...

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.