QUESTION 2 The intermediate formed in the first step of the following reaction is: CH3 1. BH3, THF 2. H₂02 a. C. 0 0 0 H a H b HIB OH QUESTION 3 H CH3 BH₂ CH3 b. d. H H₂B BH₂ OH H CH3 H CH₂

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Q: Why are buffers required to solve the proton paradox xg) x) His His His His His 64 His His H-N SAQ)…

A: The given enzyme consituting zinc as the central metal ion is carbonic anhydrase which catalyses the…

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A: -> Grignard reagent has nucleophilic character hence it can give nucleophilic addition reaction…

Q: How many liters of a 3.55 MM KClKCl solution are needed to provide 45.8 gg of KClKCl?

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Thus,

Q: ▼ Part A For the reaction 2Co³+ (aq) + 2Cl(aq)→2Co²+ (aq) + Cl₂ (g). E = 0.483 V what is the cell…

A:

Q: Part B: What pressure is needed to make each of the following changes in volume? Each of the gases…

A: we have to calculate the value of pressure when the volume is changed

Q: Calculate the pH of a solution prepared by mixing 0.0720 mol of chloroacetic acid plus 0.0280 mol of…

A: a) Given, pKa=2.865 Concentration =Molesvolume Concentration of Chloroacetic acid=0.0720 moles1…

Q: calculate the cell potential for the reaction as written at 25°C given that [Zn2+] = 0.842M and…

A: Cell potential of given reaction can be calculated as:

Q: The following reaction has an equilibrium constant of 1.94 x 10-10 at a certain temperature.…

A:

Q: Consider the following data for silver: atomic mass 107.87 g/mol electronegativity 1.93 electron…

A: Answer:- This question is answered by using the simple concept of ionization enthalpy and electron…

Q: Which of the following radii comparisons is incorrect? A) Sr²+ Se E) Sn²+ > Sn¹+

A:

Q: 5. What is the pH of a 0.35 M solution of methylamine hydrochloride, CH NH CI?

A: 5. Given,Concentration of methylamine hydrochloride, CH3NH3Cl solution = 0.35 MRequired,…

Q: 10- Which of the following Newman projections represents the most stable conformation of butane? CH3…

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Q: The compound cobalt(II) sulfate, CoSO4 is soluble in water. Write the net ionic equation for the…

A: We know cobalt(II) sulfate is made out of two ions. cation is made out of Cobalt having +2 charge…

Q: Calculate the energy required to heat 860.0 g of water from 46.1 °C to 63.4 °C. Assume the specific…

A:

Q: Consider a bcc lattice, with cube side length a = 0.83 nm. What is (approximately) the linear…

A: We need to find the linear Density along the close packed direction of the bcc lattice. Edge length…

Q: 12. Calculate pH in a 0,05M solution of Na2HPO4 (a buffer in water Ka3 for phosphoric acid)

A: Answer :-  Molarity of Na2HPO4 = 0.05 M  pH of Na2HPO4 = ? ----------------------------------------

Q: 7. A face-centered cubic cells contains 8 X atoms at corners of the cell and 6 Y atoms at the faces.…

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Q: Aniline, C6H5NH2₂, is a weak base that is commonly used in the preparation of precursors for…

A: we have to calculate  moles of aniline  volume of HCl at equivalence point  pH at the equivalence…

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Q: 7. a. What is the pH of a buffer made by mixing 1.556 mol methylamine with 1.556 mol methylammonium…

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Q: ▼ Calculate the number of grams of 1.2 % (m/m) NaCl solution that contains 6.00 g of NaCl. Express…

A: We have to calculate the specified value for the given questions

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A: Atomic size increases from top to bottom of a group elements whereas from left to right decreases…

Q: Two sets of ionizations are shown in the tables below. Complete the tables by ordering each set of…

A: • This can be determined by using the concept of ionization energy. • Ionization energy is defined…

Q: For the molecules HCN and CH3NH2

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Q: A sample of dichlorodibromosilane, SiCl₂Br2, contains 0.0402 mol of the compound. What is the mass…

A: Here, we have to find the mass of 0.0402 mol of SiCl2Br2.

Q: Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0…

A: Initial  molarity (M1) =12.1 M Volume  = V1 Final volume (V2 ) = 0.500 L Molarity (M2 ) = 0.500 M…

Q: During the separation of species by chromatography, the stronger the interaction between analytes…

A: Chromatographic Technique has immobile stationary phase and a mobile phase which is moving. Elution…

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Q: In an experiment, 1.27 mol of NOBr, 1.81 mol of NO, and 1.49 mol of Br2 are placed in a 2.70 L…

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Q: 2. If the reaction is second order overall, what are the units of k? (a) M-¹g-1 (b) s (c) MS-1 (d) s

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Q: The pH of a 0.50 M solution of ethylamine CH3CH₂NH₂ is 12.21. Calculate the Kb of ethylamine. Use…

A:

Q: 2. Give the best Lewis structure for the following, assign charges as necessary. Bolded and…

A: Given, [C(NH2)3]+ we have to write the structure of this ion.

Q: 2. Dr. Dahm has prepared 250 mL of a acetate buffer which contains 0.1 mol of acetic acid (CH₂COOH)…

A: we have to calculate the pH of solution

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Covert  j/Mol into kj/Mol

Q: Which of the following pairs of ions represent isoelectronic species? A) Mg2+ and O²- B) K+ and Li+…

A: ♧ Isoelectronic species : They have same number of electrons as their electronic configuration are…

Q: If a gaseous mixture is made of 2.33 g of He and 2.82 g of Ne in an evacuated 1.25 L container at…

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Q: Calculate the energy required to heat 1.80 kg of mercury from -3.3 °C to 17.6 °C. Assume the…

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Q: 5. The mechanism for the reaction of 3-methyl-1-butene with sulfuric acid will proceed through which…

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Q: Calculate the energy required to heat 618.0 g of ammonia from 50.3 °C to 68.2 °C. Assume the…

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Q: Draw the structure of each of the following molecules. (a) pentanoyl chloride; (b)…

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Q: The pH of a 0.50 M solution of ethylamine CH3CH₂NH2 is 12.21. Calculate the Kb of ethylamine. Use…

A: we have to calculate the value of Kb for ethylamine

Q: Question 8 of 13 student places a block of hot metal into a coffee cup calorimeter containing 152.0…

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Q: Reaction 2: H₂N HCI (3М) H₂N 1 4 ОН OH С+ NaOH (6M) H₂N НО OH 2 LO 5 8 ONa 0= OH CIH3N 3 6 9 CI

A:

Q: A 1.95 g sample of an unknown gas at 51 °C and 1.05 atm is stored in a 2.25 L flask. What is the…

A: Given, the amount of an unknown gas at 51 °C and with its pressure andvolume.We are asked to…

Q: Calculate the mass percent (m/m) for the solute in each of the following solutions: Part A 64 g of…

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Q: A pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A: Cooling curve is a plot of temperature vs. heat and gives information about the phase change of a…

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: To find the enthalpy of reaction, check the formula and write the respective values of the compound.

Q: A bottle of champagne is 17 % alcohol by volume. ▼ Part A If there is 700 mL of champagne in the…

A: The volume of solute in milliliter present in 100 mL solution is known as the volume percent…

Q: . Which molecule has the shortest bond? - Which molecule has the highest bond enthalpy? Which…

A: Greater the bond strength greater is the bond order and shorter is the bond . Bond order can be used…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".