Drops of dichlorofluorescein indicator have been added to a solution containing 0.2500 g sample of KBr whic h required 12.32 mL of standard 0.1700 M silver nitrate. Calculate the purity of K Br (119.00 g/mol) in the sample.

Q: For CaF20) Ca (aq) + 2 F (aq) + 2 F (agh K= 3.9 X 10 at 25 °C and the standard Gibbs energy of…

A: GivenCaF2(s) ⇔ Ca2+(aq)  + 2F-(aq)K = 3.9 × 10-11T = 25°C T = (273.15 + 25) = 298.15 K∆GCaF2(s)° =…

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Q: 3. For the reaction PCl3 + Cl2 → PC15 AH = - 124 kJ/mol The activation energy for the process is 154…

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Q: 2) For a first order reaction the concentration of the reactant A changes with time according to the…

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Q: Select the naming violation for iron iodide. Please copy/paste one of the following violations…

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Q: 32. Which of the given below is an elimination reaction? I. III. 1 III IV 0-α Br All of the above…

A: AS PER THE ANSWERING GUIDELINES I CAN ANSWER ONLY THE FIRST ONE, IF YOU WANT THE REST POST THEM…

Q: 5. Which of the following is true of orbitals? a. They are two-dimensional paths around the nucleus.…

A: We have to select the correct statement from the given options with respect to orbitals.

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Q: Use the following data to estimate AH°f for magnesium fluoride. Mg(s) + F₂(g) → MgF₂(s) Lattice…

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Q: Part 1: Balance the given Reduction-Oxidation (REDOX) equations using the Oxidation Number Method.…

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Q: Q2. Using Mass spectrum and NMR data deduce the structure of the following compounds; (a) C,H,BrO₂…

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Q: Using only periodic table, arrange the following elements in order of decreasing first ionization…

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Q: 1) 2) 3) H3C CH3 CH3 Br CH₂CH₂CH3 Br₂ EtOH 1. Li 2. H.CO 3. H₂O + Br₂ hv Show all of the different…

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Q: Here are four sketches of pure substances. Each sketch is drawn as if a sample of the substance were…

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Q: MISSED THIS? Read Section 17.9 (Pages 765-769). Calculate the concentration of all species in a…

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Q: Identify the chirality centers in the following molecules

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Q: 4. Iron forms a common ion with a charge of +3. The electron configuration of this ion is: a.…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: 36. Which of the following is the major E2 product formed from the following alkyl halide? OI ||| O…

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Q: A dietitian is planning a meal of beef, corn, and carrots for a patient. The patient needs the meal…

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Q: Sn1, H,0 O Sn1, DMF Sn2, H₂O Sn2, DMF HO H₂O or DMF OH

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Q: When an object with an electric charge of 4.0 µC is 3.0 cm away from an object with an electric…

A: We are provided with two objects with electric charge 4.0 uC and -9.0 uC which are seperated by 3.0…

Q: Perform a retrosynthetic analysis and suggest a synthesis of the target molecule (on the left) from…

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Q: a How many protons and neutrons are contained in the nucleus of the isotope below? Assuming the atom…

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Q: When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of…

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Q: ) Consider the reaction:  A  ⇌ B + C  Kc = 1.2. If the initial concentration of [A] = 0.610 M what…

A: the reaction: A ⇌ B + C Kc = 1.2. If the initial concentration of [A] = 0.610 M

Q: Construct the expression for Ka for the weak acid, HC₂H₂O4. HC,H,O,(aq) + H,O()) = H,O*(aq) + C₂H₂O4…

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Q: How many of the following molecules do require an expanded octet on the central atom for its Lewis…

A: The molecules which has more than 8 electron requires expanded octet

Q: Balance the following equation (NH4)2SO4+NaOH=NH3+H2O+Na2SO4

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Q: Determine the concentrations of the [HF] and [H3O+] in a solution contained HF at a concentration of…

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Q: A 400 Å thick film of ZrO2 (n = 2.10) is deposited on glass (n = 1.50). Determine the normal…

A: Answer:

Q: Use the language in the scenario to determine which subscripts we'd use in the chemical equation to…

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Q: Decide whether each sketch shows a pure sample of an element or a pure sample of a compound.…

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Q: The following atoms all undergo positron (°1 e) emission. write the nuclear equation. 116 Sn→ 50 61…

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Q: Calculate the pH of a weak acid that has a concentration of 0.225 M and Ka = 1.4 x 10^-6

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Q: 2) Calculate the mass defect and binding energy the nuclide 1058 where the mass of 10 B atom -…

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Q: 23. What effect makes the chloride a good leaving group in acyl chloride? +1 -11 +M -M

A: We have find out the correct option.

Q: 4. What is the order of (i) boiling point; and, (ii) acidity for the following set of hydrogen…

A: AS PER ANSWERING GUIDELINES I CAN ANSWER ONLY THE FIRST ONE IF YOU WANT THE REST POST THEM…

Q: Find the rate law for this reaction: TABLE 12.5 The Results from Four Experiments to Study the…

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Q: Solid Pb(IV) oxide was placed in a 1-L vessel containing hydrogen as at a pressure of 3 atm PbO2(s)…

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Q: 24. Given the following half-cell reactions: 2+ Fe²+ (aq) + 2e Fe (s) Cr³+ (aq) + 3e¯- → Cr (s) a.…

A: Answer:- This question is answered by using the simple concept of calculation of standard cell…

Q: A complex with the composition [MA₂B₂]X₂ is found to have no geometrical isomers. Both A and B are…

A: Given ->  Complex -> [MA2B2]X2

Q: When a solute is a gas, there is no lattice to break before the solute can form IMFs with the…

A: Enthalpy of solution, ∆Hsolution :- It is given by the formula  ∆Hsolution = ∆Hlattice + ∆Hsolvation…

Q: 2. What is the mole fraction of ethanol in a solution prepared by dissolving 200.0 g of g/mole…

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Q: Complete the reaction map by providing the major product. #2 E SOCI # 1 E- OH CH3CI KMnO4 - А PDC B…

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Q: ctant of known quantity to a while monitoring the equilibrium to determine the concentration ation…

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