What is the pH of a 0.780 M solution of CsHsNHBr (Kb of CsHsN is 1.7 x 10-⁹)?

Q: 4) is true? Given a reaction with AH = -53.9 kJ/mol and AS = + 79.9 J/(mol-K), which state a. This…

A: Answer: Below shown relation will be used to find out the spontaneity of the reaction: ∆G=∆H-T∆S…

Q: A ОН В НО. HO CI CI C

A: Acidity of alcohols can be predicted by the stability of anion formed by the loss of H+ from the…

Q: At what temperature Celsius will 19.4 g of molecular oxygen, O2, exert a pressure of 1820 mm Hg in a…

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Q: 8. In general second-order resonance structures are not as important as first-order resonance…

A: We have find out the answer.

Q: A student determines that an aqueous solution that contains 9.32×10-2 M sodium cyanide and 0.163 M…

A: [NaCN] = 9.32×10-2 M [HCN] = 0.163 M [H3O+] = 8.05×10-10 M   [H2O] = 55.55 M

Q: Show how you would synthesis the chloride, bromide, and iodide from the corresponding alcohols (a)…

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Q: 14. In aqueous solution, hydrazine is a base that can accept two protons: N₂H4(aq) + H₂O(1) ≥…

A: Since Kb2 << Kb1, the OH-(aq) contribution is mainly due to the 1st hydrolysis reaction. Hence…

Q: Balance the following MnO4 (aq) + Fe2+ (aq) → Mn²+ (aq) + Fe³+(aq) oxidation-reduction reaction…

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Q: A solution of Na3PO4 is added dropwise to a solution that is 0.0862 M in Ca²+ and 0.000547 M in…

A: The question is based on the concept of solubility product principle.  It that states that when a…

Q: 6. Starting from benzene and any necessary reagents, synthesize the following compound utilizing the…

A: Wittig reaction is an organic chemical reaction wherein an aldehyde or a ketone is reacted with a…

Q: 2. A compound contains 39.99% carbon, 6.73% hydrogen, and 53.28% oxygen, by mass. a) Determine the…

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Q: Which of the following substances will oxidize Fe²+ (aq) Select one: Ni(s) Zn(s) Br₂(1) 1₂(s) A…

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Q: A voltaic cell is constructed from a standard Mg2+ Mg half cell (E° red = -2.370V) and a standard…

A: E°cell = E°cathode - E°anode  If E°cell is positive then cell reaction is spontaneous If E°cell is…

Q: Identify the reagents you would use to accomplish the following transformation: x Br Br The…

A: When geminal dihalides are treated with excess of strong base such as NaNH2 followed by the addition…

Q: For this reaction X = 2Y, the initial [X] =1.0 M, and [Y] =0 M. After 5 minutes the [X] has fallen…

A: Given reaction is, X↔2Y initial concentration of X = [X] =1 M Concentration after 5 minutes = [X]t =…

Q: The buffer from Part A is diluted to 1.00 L. To half of it (500. mL), you add 0.0100 mol of hydrogen…

A: Given,  Volume of buffer solution = 500. mL moles of H+ ions = 0.0100 mol

Q: Complete the electron‑pushing mechanism for the given reaction of 3‑pentanone in potassium cyanide…

A: The given reaction invovles cyanohydrin formation.

Q: 4 2 males R

A: …

Q: Which of the following entities can act as both an oxidizing agent and as a reducing agent? Select…

A: Oxidizing agent- Species that oxidize other substance and itself gets reduced. Reducing agent-…

Q: Use the standard reduction potentials located in the 'Tables' linked above to calculate the standard…

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Q: Cathodic protection can be achieved by attaching a more (anodic / cathodic) material to the one to…

A: Cathodic protection is a method which is used to save many structures from corrosion such as…

Q: Br + КОН Д

A: Given organic compound is 2-bromo ethyl benzene and potassium hydroxide. KOH will act as a strong…

Q: 9. Indicate if each of the molecules is a stronger, weaker or similar base to aniline and provide an…

A: Aniline (C6H5NH2) is a primary aromatic amine that contains an amino group (-NH2) attached to a…

Q: What is the meaning of the term wavenumber, which is used in IR spectroscopy? It is the total number…

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Q: For each of the following compounds, decide whether the compound's solubility in aqueous solution…

A: The solubility of an ionic compound changes with pH if it produces an ion that reacts with H+(aq)…

Q: Which of the following species has the smallest radius? OA. Rn OB. S-2 OC. Sc+3 D. Ac+3 E. p-3

A: The question is based on the concept of atomic size.  we need to identify the atom or ion having…

Q: Step 2: A hemiacetal formation has a similar mechanism to the hydrate reaction, except 1 equivalent…

A: When an aldose cyclizes, the alcohol group 2nd to the last carbon atom, attacks the aldehyde carbon…

Q: The Fischer projection for linear D-glucose is shown. Fill in the missing H's and OH's for the wedge…

A: In D-glucose, CH2OH is "up" in the Howarth projection. In chiar conformation, CH2OH is placed "up"…

Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…

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Q: Will you double check the attached images of reactions with my answers... (My answers are shown in…

A: In most of the reaction nucleophile substitution is taking place. Also, HVZ reaction, bromination…

Q: Step 6: Put it all together. Place the intermediates and reagents in the labeled positions. of NH₂…

A: In this reaction , in the first step carboximide group reactant is first converted to the carboxylic…

Q: Write the cell notation for an electrochemical cell consisting of an anode where Al (s) is oxidized…

A: We have to write cell notation .

Q: What might be the result if you had used a lower concentration of sulfuric acid? There would be more…

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Q: 1.2 2(i) In the contact process: OH = -197 kJ mol-¹ 2SO₂(g) + O₂(g)2SO3(g) Predict the position of…

A: According to Le-Chatelier's principle when factors like concentration, pressure, temperature, inert…

Q: A buffer was made by combining 80.97 mL of 0.15 M acetic acid (pK₂=4.756) and 176.58 mL of 0.25 M…

A: Answer: Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: Draw the products that are expected for the following reaction. Excess H₂O Modify the given…

A: We have find out the answer.

Q: A weather balloon calibrated at 0.00 °C to have a volume of 14.0 L has what volume at -25.8 °C…

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Q: 1.3 3 (i) In the Haber process for the production of ammonia, the following reaction occurs: 2NH3…

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Q: 1. What would be the effect of the following errors in chromatographic work? a) The solvent level in…

A: Thin layer chromatography (TLC) is a method of separating components of the mixture. it is based on…

Q: LAB 8 Pre-Lab Questions portions of lab adapted from various online and reference sources 1. Fill in…

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Q: Consider the titration of a 23.0 mL sample of 0.110 M HC₂H3O2 with 0.120 M NaOH. Determine each of…

A: The question is based on the titrations.  we are titrating a weak acid Acetic acid with a strong…

Q: Row one was incorrect, not sure what it could be.

A: The compound in first row is nitric acid, HNO3 We are to write if it is ionic or molecular compound…

Q: Balance the following equations. (Use the lowest possible whole-number coefficients. These may be…

A: Balancing of chemical equation is a process the equate the number of individual atoms in reactant…

Q: 7. Draw the conjugate acid for the aromatic compound and predict if the pKa will be closer to 10 or…

A: Conjugate acids are those species which are produced when a Bronsted - Lowery base accepts a proton.

Q: Where do you get the O-H spectroscopy of 3200-3400 & the O-C  of 1200-1300?

A: Which functional group is present in a molecule can de determine from the IR spectroscopy graph.…

Q: Retero synthesis using only stacting material. NH3 OH

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Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: Given the melting point of the substance, X = 70. oC Given the heating of the substance X starts at…

Q: Nitrogen monoxide and water react to form ammonia and oxygen, like this: 4 NO(g) + 6H₂O(g) 4NH,(9) +…

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Q: Blue dye can be decolorized by treatment with bleach. The kinetics of the reaction can be studied by…

A: Since first two questions are related to each other and the third one is different. Hence, we solve…

Q: Step 3: If excess alcohol is present in the hemiacetal, the hemiacetal can be further converted to…

A: Hemiactal group contains carbon atom connected with one OR group and one OH group. Acetal group…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.