What are the requirements for a solution to be classified as a buffer solution?

Q: EA21 A. B. C. D. H Which one of the following mechanistically depicts the reaction between nitric…

A: An acid when dissolved in water it give protons.

Q: an unknown solid was dissolved in water then precipitated to to get aliquots with decreasing…

A: The solubility product(Ksp) and the standard Gibbs free energy change for the reaction(∆Gorxn) are…

Q: 17. Which one of the following statements is incorrect? 9m6 a. A single bond has a bond order of 1.…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: Suppose a balloon containing 1.97 L of air at 298 K is placed into a beaker containing a cold liquid…

A: We have  : Initial Temperature (T1) = 298 K   Volume (V1) = 1.97 L    Final Temperature (T2) = 197…

Q: When the Cu²+ concentration is 1.26 M, the observed cell potential at 298 K for an electrochemical…

A: Multiple questions

Q: Answer the following questions: 1. Sucrose, a natural disaccharide, has the following structure: H 4…

A: Disaccharides  - the two monosaccharide unit are held together to form a molecules is called…

Q: e) f) - -CI CI (CH3)2Culi 1) LiAl(OR) 3H 2) H+ CO₂H + CH3OH H*

A: According to the bartleby guidline for the sub multiple questions we can solve only first three…

Q: A 0.2433 g sample of a monoprotic acid neutralizes 31.31 mL of a 0.08819 M KOH solution. Calculate…

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Q: Write the net ionic equation for the following reaction and identify the substance that is oxidized…

A: Oxidation = loss of electrons hence increaseing the possive change Reduction= gain of electrons…

Q: Identify each of the following as an acid, a base, or a salt. Drag the appropriate items to their…

A: Acid is donar of H^+ ion  or acceptor of lone pair of electrons. Base is donar of OH^- ion  or…

Q: water.) Draw the four products that would form in the crossed aldol condensation shown below.…

A: The alpha hydrogen of carbonyl compounds is acidic in nature and it is removed as a proton in the…

Q: What is the formula of the colored precipitate obtained in the sulfur test or lead acetate test.

A: formula of the colored precipitate obtained in the sulfur test or lead acetate test = ?  Sulfur test…

Q: The vapor pressure of water changes with temperature, as shown here. T (°C) P (torr) 21 18.7 22 19.8…

A: Answer: This question is based on Faraday's law of electrolysis that states that mass of any…

Q: The pOH of a 0.0200 M solution of HCI is

A: Molarity of HCl = 0.0200 M  HCl is strong acid hence it dissociated fully in aqueous solution

Q: the d orbitals (t2g and eg) as they would exist in this complex for Co. Show the electrons in C…

A: We have find out the answer

Q: Calculate the molar solubility of AgCl in a 2.00 L solution containing 14.0 g of dissolved CaCl₂. Be…

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

Q: 7. Comparing the equation for your line to the equation AG = -AS-T + AH. a. Solve for the value of…

A: Question: 8 As per given information on enthalpy and entropy  ∆S°=315.48 Jmol.K∆H°=110399 JmolT=298K

Q: NAD is: B The reduced form of NADH A dehydrating coenzyme A hydrating coenzyme A methylating…

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Q: dach Et-

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Q: 50 g of NaCl has been dissolved in water to come up with a 120 mL of solution. The saline solution…

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Q: a. 0.979 m 36. "The component of a solution in smaller amount" is our textbook's definition of what?…

A: A solution is defined as mixture of two or more components. A binary solution contain two…

Q: 55. What is the correct IUPAC name for the alcohol whose structural formula is: CH3-CH-CH-CH3 CH3 OH…

A: IUPAC (International Union for Pure and Applied Chemistry) nomenclature gave the rules for naming…

Q: 3) Given the drawing, what is the name of Compound 3? A (E)-1-ethylhex-2-en-1-ol B…

A: The question is based on the concept of IUPAC naming. we need to write IUPAC name of given compound.

Q: Check the box under each compound that exists as a pair of mirror-image twins. If none of them do,…

A: A chiral centre can be defined as a carbon centre with four different substituents. A chiral…

Q: о O A B О E A OH даво B 1) NaOH 2) H+ Product 1 НО О OH о. E о

A: The active methylene hydrogen are acidic in nature and the base will abstract the these protons to…

Q: 124 Does the [CoBr214]³ complex have an optical isomer? W Using the valence bond theory and hybrid…

A: A compound will only be optically active if it doesn't have plane of symmetry , center of symmetry…

Q: 1. CH₂CI, AICI 2. NBS 3. Mg, ether 4. Å 5. Mild H₂O* 6. PCC 7. NaOH 8. H₂O*, heat

A: Benzene react with alkyl halide in the presence of Lewis acid to form alkyl Benzene.  NBS is used…

Q: 8. Identify the following reaction types (e.g. condensation, addition, etc.). CI I OH dilute NaOH…

A: The basic organic reaction types are addition, elimination, substitution, and rearrangement…

Q: Check the box under each compound that exists as a pair of mirror-image twins. If none of them do,…

A: The structures that exists as mirror images of each other are called enantiomers.

Q: -C-OH CH3CH₂CH₂NH₂

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Q: For the dimerization of a certain compound "A", the following half-lives were obtained for different…

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Q: Identify the type of solution produced in a solution that has 100 g of water as its solvent based on…

A: The question is based on the concept of solubility.  solubility follows a basic principle "like…

Q: Show the mechanism and product for this reaction. (Use curved arrows to show the electron flow in…

A: The given reaction involves following steps  1. Generation of bromonium ion 2. Electrophilic…

Q: 39. Which of the following solid salts is more soluble in 1.0 MH* than in pure water? a. AgCl b.…

A: The common ion effect states that the solubility of a salt is reduced in a solution that already…

Q: 1. Determine whether each of the following salt solutions would be acidic, basic, or neutral. a.…

A: The question is based on the concept of salt hydrolysis. we need to explain the nature of salt…

Q: EA 33) What are the configurations of carbons 2 and 3 respectively in the Fischer projection shown ?…

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Q: 38. Selenium tetrabromide has a vapor pressure of 757 mmHg at 145°C and 422 mmHg at 85°C. What is…

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Q: Why do ketones not answer to base catalyzed aldol condensation like aldehyde?

A: In this answer, we discussed why ketones have lower reactivity compared to aldehydes in…

Q: The enthalpy of vaporization of Substance X is 23.0 Round your answer to 2 significant digits. D.P X…

A: Enthalpy of vaporization of X = 23.0 kJmolNormal boiling point , T1=-104 °C=(-104+273)K=169 KFinal…

Q: Consider only the first 4 energy levels in the Hydrogen Atom. There will be 6 possible emission…

A: We are given only the first 4 energy levels in the Hydrogen Atom. There will be 6 possible emission…

Q: 4) Provide the structure of the intramolecular aldol condensation/dehydration product(s) that…

A: In intramolecular Aldol condensation reaction within the same molecule takes place . In Aldol…

Q: Check the box under each compound that exists as a pair of mirror-image twins. If none of them do,…

A: The stereoisomers of any compound which is non-super imposible mirror image of each other is know as…

Q: 15 16 17 Questions 15-20 refer to the same weak base/strong acid (WB/SA) titration. The K, of…

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Q: EA 28 H H CH3 H H H CH3 H The structure on the left is:

A: Cyclohexane is a cycloalkane that contains 6 carbons.

Q: Calculate the enthalpy of formation of 1 mole SO₂(g) from the standard enthalpy changes of the…

A: Given reaction steps are : • 2SO3  -> 2SO2 + O2 ∆H°rxn = 196kJ  ... (1)  •2S + 3O2 -> 2SO3…

Q: 2. 10.29 g of an unknown substance absorbs 430 J of heat as its temperature rises from 15°C to 25°C.…

A: mass of unknown substance = 10.29 gHeat absorbed , Q = 430 JInitial temperature, T1= 15°CFinal…

Q: Write the half-cell reaction for the following: a. Pt(s), Cl2 (g), HCl (aq), → HBr (aq), Br2 (l), Pt…

A: Left hand side is written the anode reaction and right hand side is written the cathode reaction.…

Q: presented by Macmillan Le. Consider the pair of solvolysis reactions. Draw the organic products,…

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Q: ffer solution is prepared by combining 0.848 moles of formic acid and 0.719 moles of sodium formate.…

A: Mole  formic acid= 0.848    Mole sodium formate = 0.719  Mole of NaOH = 0.126  Ka = 1.8×10-4.   Pka=…

Q: 7. Which of the following ketones will undergo an iodoform reaction to provide a carboxylic acid and…

A: