For a molecule of PBr3, • using the pencil tool, draw a stereochemical diagram • using the pencil tool, draw in bond dipoles • using the pencil tool, draw in any resultant vectors

Q: How many grams of pure Na2CO3 must be weighed and dissolved in a solution, if you are to prepare a…

A: Given-> Normality of HCl = 0.1478 N Volume of HCl = 61.75 ml Molecular weight of Na2CO3 = 106…

Q: Identify the functional groups in the given or 0 HO-H H OH OH Select the correct response: Aldehyde…

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Q: A 2.0 gram sample of a non-electrolyte is dissolved in 100 grams of water. If the resulting solution…

A: Given, mass of sample of a non electrolyte = 2.0 g Mass of water solvent = 100 g = 0.1 Kg Freezing…

Q: PROBLEM 3: Given the following half reaction: a. 1₂1t b. Pt| Fe.Fe+3 c. ZnZn 2 d. Ag | Ag For each…

A: a) The following are the separate two half-cell balanced reactions for the given redox reactions: i)…

Q: The standardization of same titrant during the determination of BOD5 of water sample was done…

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Q: Question 14 Estimate the enthalpy of the reaction: X2 (g) +Y2 (g) --> 2 XY (g) by using the…

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Q: The half-equivalence point of a titration occurs half way to the equivalence point, where half of…

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Q: A sample of gas is heated from 25 C to 50 C. If the original volume is 500 ml, what is the final…

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Q: What happens when a non-standard titrant is used in the titration of an unknown sample? a - The…

A: Titration is a method to determine the concentration of an unknown solution by using the solution of…

Q: (Q101) Outside of the nucleus, the strong force: Decreases by a factor of two for each electron…

A: Outside of the nucleus the strong force is  virtually non-existent So only option b is correct…

Q: Water required 120.5 seconds to flow through a viscometer and the same volume of acetone required…

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Q: What conclusion can you reach regarding the spacing between atoms, the relative strength of the…

A: In each of the phases, solid, liquid and gas, the relative strength of intermolecular forces and the…

Q: What is the function of DNA? * carrying the correct amino acid to the site of protein synthesis in…

A: There are two types of nucleic acid-  1- Deoxyribose nucleic acid 2- Ribose nucleic acid

Q: Given the thermodynamic information below for ethylene glycol (molar mass = 62.068 g/mol): Normal…

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Q: Given that the molar entropy change (AS) of water at 273 K is 22.0JK¹ mol¹. What is the heat of…

A: Which one of the following is correct

Q: 1. Draw 3 isomers of C7H12O2 then state where you will dispose it (the kind of waste disposal should…

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Q: A 25.0-mL sample of 60.0% isopropyl alcohol solution was distilled at 82.6°C. If the volume of the…

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Q: 12.8(b) Calculate the probability that an O-H bond treated as a harmonic oscillator will be found at…

A: The solution of the given question is

Q: Which of the following is NOT a guideline in writing a good recommendation for a research paper?…

A: A research paper is written by a researcher in which he explain what he had learned after exploring…

Q: phHệ CH 3 سار اي منهم مفقل الے۔ ph left (H3 ciz right CH₂ OM OH ؟ ko

A: The acidic strength depends upon the stability of conjugate base.Stable the conjugate base more will…

Q: Which of the following chemical elements has the highest tendency to loss electrons? Al. Li. Mg.…

A: The correct answer is given below

Q: 8Fe + S8 → 8FeS How many grams of iron are needed to react with 3.00 g of sulfur?

A: Given weight of sulfur is 3 gram

Q: The gallium-67 nuclide is used in tumor diagnostic applications. This has a half-life of 78.2 hours.…

A: given, half life =  78.2 hours  time = 5.00 days

Q: 27 °C, 500 cc of H2, measured under a pressure 400 torr, and 1000 cc of N2, measured under a…

A: T = 27°C = 27 + 273 = 300 K V1= 500 cm3 = 0.500 dm3 = 0.500 L (1dm = 10cm ,1dm3 = 1L) P1= 400 torr…

Q: t is the normality of 50.0 ml Ba(OH)2 solution when titrated with 23.50 mL of 0.250 N HCl? MM BaOH2…

A: Given-> Volume of Ba(OH)2 = 50.0 ml Volume of HCl = 23.50 ml Normality of HCl = 0.250 N

Q: In which equation(s) do/does water act as a Bronsted-Lowry base? You may choose one or more…

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Q: [H] 1.0×10-3 3.6×10-5 pH 6.21 POH 4.84 [OH] 5.1×10-3

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Q: Ksp =

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Q: At a certain temperature, the solubility of strontium arsenate, Sr. (AsO4)2, is 0.0620 g/L. What is…

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Q: 4. The reaction 2HCl (g) = H 2 (g) + Cl 2 (g) has a K = 3.2 x 10 -34 at 25 o C. If a reaction vessel…

A: We can calculate the equilibrium concentration of Cl2 and H2 by using the equation of the given…

Q: Name the following organic compounds: compound CH3 I CH₂ I CH₂ -CH- CH,— CH,— CH, CH3 - CH₂ - CH₂ |…

A: IUPAC nomenclature rules for alkanes: 1) find the longest continuous straight carbon chain. 2)…

Q: Write the balanced chemical equation for each of the reactions. Include phases. When aqueous sodium…

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Q: A 2.0 gram sample of a non-electrolyte is dissolved in 100 grams of water. If the resulting solution…

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Q: Viscosity is the resistance to flow. a. List the following liquids, CH₁ CH(OH)3 CH₂OH CHF from most…

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Q: 30 Br he 31 + HO. لماذا و( 32 OH 33; phenol e Br 34

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Q: List and explain how each error effects my º yield when doing the reaction of finding percent yield…

A: % yield = (Mass of product formed / Theoretical yield) * 100

Q: 5. Draw several resonance contributors for the cyanate ion, [OCN]. Circle the two lowest energy…

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Q: Express Ksp in terms of molar solubility, x, for the salts with the given formulas.

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Q: 1. Write balanced chemical equations and net ionic equations for the following if there are any…

A: Balanced equation is the equation in which equal number of atoms of each element are present on both…

Q: Select from the following reactions, the one(s) that are spontaneous, if any. I. BrO3-(aq) + 2NO(g)…

A: For a spontaneous reaction, Ecell is positive while negative Ecell value indicates non spontaneous…

Q: 1. Draw 3 isomers of C7H12O2 then state where you will dispose it (the kind of waste disposal should…

A: Isomers are compounds having same molecular formula but they will have different structures. The…

Q: Based on the general procedure for this reaction, how much of each reagent is needed to produce the…

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Q: The following reagents/conditions are capable of selectively oxidizing a primary alcohol to an…

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Q: If a drug binds to a receptor with an association rate (kon) of 2 10 moi Ls and a dissociation rate…

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Q: The Ksp of lead(II) hydroxide, Pb(OH)2, is 1.43 × 10-20. Calculate the molar solubility, s, of this…

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Q: The data gathered can be presented in a table. Which of the following is NOT included in labeling…

A: Which of the following is not included in labelling the table in presenting the data to be analyzed?…

Q: Calculate the % KHP of 1.294 g sample which requires 48.25 mL of NaOH solution during the titration.…

A: Molarity of NaOH is not provided in the question. So I aassumed it to be X molar. Just put the value…

Q: a) Answer ALL parts a) - c). i) State the selection rule for an IR active transition. What factor…

A: According to bartleby guidelines, we're supposed to answer first three subparts of a multipart…

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction HNO₂(aq)+H(aq)+e…

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Q: What is the mfp of 0.0253 eV neutrons in Zr? For Zr: A = 55.8, p = 6.5 g/cm³, os = 8 b, oa = 0.18 b.

A: Given: For Zr,  A = 55.8 g/mol Density = 6.5 g/cm3 σs = 8b σa = 0.18b Na = 6.023 x 1023 (Avagadro's…