What is the difference between dissolved oxygen and oxygen in air?   Why is D.O. an important measurement of an aquatic ecosystem?

Q: KHC8H4O4 (KHP) is a monoprotic acid commonly used to standardize aqueous solutions of strong bases.…

A: KHC8H4O4 (KHP) is a monoprotic acid  A sample of 354.5 mg of KHP, 17.20 mL of a solution of…

Q: can you explain how both those carbons are chiral in the second molecule, like what are the four…

A: Chiral carbon is that which have attached four different groups or atoms . Generally SP3  hybridized…

Q: Which of the following salts would become more soluble in acid? Select all that apply: (a) BaCl2 (b)…

A: Solubility is a measure of how much of a substance can dissolve in a given amount of solvent at a…

Q: interpret the peaks and their characteristics (C=O, C-H, etc.)

A: A question based on IR spectroscopy of organic molecules. 2 IR spectra are given that are to be…

Q: Calculate E° for the following half-reaction: Pd(OH)2(s) + 2e- ↔ Pd(s) + 2 OH- . Given: Ksp for…

A: In this question we have to find the E° of the Half Reaction  Given  Ksp = 3.0 ×10-28   So  Pd2+ +…

Q: Calculate the pH when 20.0 mL of 0.150 M KOH is mixed with 21.0 mL of 0.300 M HBrO (Ka = 2.5 × 10⁹)

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Q: What is the molar solubility of Mg(OH)2 in water (in M)? (Ksp = 8.9 x 10-12 for Mg(OH)2. Use E in…

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Q: A chemist titrates 190.0 mL of a 0.5701 M methylamine (CH₂NH₂) solution with 0.4336M HNO3 solution…

A: Given 0.4336 M HNO3 which is a strong monoprotic acid.  190 ml 0f 0.5701 M Methylamine(CH3NH2)…

Q: What are the environmental impacts of fracking

A: Fracking, or hydraulic fracturing, is a controversial method of extracting natural gas and oil from…

Q: Identify the reagents you would use to perform the following transformation: OH The transformation…

A: Alcohols on oxidation with acidified sodium dichromate produces carboxylic acids. The carboxylic…

Q: What is the molarity of a solution that contains 2.38g of H2C2O4 x 2H2O in 200ml of solution?

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Q: Which ome of these gases would have the highest density at standard temperature and pressure? A) Kr…

A: Answer: To solve this problem, density of ideal gas equation will be used which is shown below:…

Q: Trial #1:  A piece of magnesium with a mass of 0.330 grams was placed into a solution of…

A: Recall the given reaction,                            Mg s + 2 HCl aq → H2 g + MgCl2 aq Mass of…

Q: Cr3+(aq)Cr3+(aq) solution is electrolyzed using a current of 7.80 AA.     Part A What mass of…

A: Part A :  current passed through solution = 7.80 A  Time = 3.00 days  Since 1 day = 86400 sec  =>…

Q: 5. In the preparation of polyurethane, what causes the solution to foam and expand in volume?

A: In the preparation of polyurethane, the isocyanate is allowed to react with a polyol.

Q: draw a mechanism for the polymerization of caprolactam to nylon using curved arrows to show the flow…

A: Step growth polymerization: The condensation occurs in a stepwise manner with or without elimination…

Q: Use the References to access important values if needed for this question. A local AM radio station…

A: Question 1 :  Energy (E) = 5.77 x 10-31 kJ/photon  Question 2:  Energy (E) = 2.26 x 10-28 kJ  For…

Q: Draw the major product of the aldol condensation reaction between two of these aldehydes with the…

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Q: Consider an electrochemical cell made up of Au Au and Co²+ | Co³+ half-cells. Part 1 of 2 Write the…

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Q: Based on the structure of 9-Fluorenol and 9- Fluorenone, which of the following statements about…

A: Melting point is defined as the temperature at which a solid starts melting and becomes liquid.…

Q: Predict the organic product of the following reaction: Cl₂, FeCl3 ?

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Q: 4.35. Derive equations 4.35-4.37. (27), - -(²), = as (2) - (1) as (,), - -( ), = ᎧᎢ (4.35) (4.36)…

A: Maxwell Thermodynamics Relations First law If a substance absorbs a vary small amount of heat  δQ at…

Q: A 13.2 g sample of an aqueous solution of hydroiodic acid contains an unknown amount of the acid. If…

A: The question is based on the concept of quantitative analysis. we need to calculate percentage…

Q: 1. Why are the measured H-O-H bond angles for H₂O smaller than what is predicted by VSEPR? 2. Why is…

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Q: N 1. 2. H3O+ a Draw the organic product of this reaction. MgBr

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Q: The following chemical reaction takes place in aqueous solution: 1 FeCl₂(aq)+Na₂S(aq) → FeS(s)+2…

A: Since, Balanced reaction means that both side number of atom present in equal number. Thus,  For…

Q: Con For each chemical reaction listed in the first column of the table below, predict the sign…

A: In the given question we have to the predict sign of the Reaction entropy i.e ∆Srxn . we know that,…

Q: Consider the following half-reactions: Half-reaction Ag+ (aq) + e →→→→→ Ag(s) Sn2+ (aq) + 2e™…

A: Answer: During a redox reaction, the substance that oxidizes others and itself get reduced is called…

Q: Write the balanced molecular chemical equation for the reaction in aqueous solution for barium…

A: An aqueous solution of barium nitrate reacts with an aqueous solution of lithium sulfate to form a…

Q: QUESTION 40 Classify the following monosaccharide as an aldopentose, ketopentose, aldohexose, or…

A: It is based on the concept of classification of carbohydrates. Here we are required to find the…

Q: Calculate the standard cell potential for the galvanic cell, which has the overall balanced equation…

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Q: In a titration experiment, 27.7 mL of 0.719 M HCOOH neutralizes 29.2 mL of Ba(OH)₂. What is the…

A: Given:-  for titration Experiment    Volume of H-COOH = V1 = 27.7 ml     Concertation of H-COOH = M1…

Q: Match each structural formula on the left to a general functional group classification on the right.…

A: ★ Functional group : In organic chemistry functional groups are a atom or some groups of atoms which…

Q: What is the pH of a solution prepared by mixing 42.09 mL of 0.7471 M HCl and 32.05 mL of 0.8811 M…

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Q: Question 1 Draw a molecule having the following functional groups: Amide, ether, thioester, alkene…

A: The special group or atoms present in the which changes the property and reactivity of molecule is…

Q: What is the chemical formula for the compound formed between sodium and bromine? formula: NaBr What…

A: The use of chemical element symbols, numbers, and other notations to represent the chemical…

Q: Using mass density to find mass or volume 08 A chemistry student needs 90.0 mL of carbon…

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Q: CH 3 AMMONIUM FORMATE Pd/C/Used As Cat. · Cats) EtoH

A: Unsaturated double bonds in a molecule can be chemoselectively reduced to saturated bonds by Pd/C…

Q: For the following reactions, write Ka or Kb expressions (as appropriate) and predict in which…

A: To write the expression for the equilibrium constant for the following reactions:  (a) HCl (aq) +…

Q: Glucose has the structure shown below. It can be classified as a(n) I OH CH₂OH Н OH 0 I OH н

A: Glucose structure .

Q: 15 (a) Predict the possible magnetic moments of Co(II) in square planar, tetrahedral and octahedral…

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Q: ||| = 7°F artly cloudy MEASUREMENT AND MATTER Multiplication and division of measurements Decide…

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Q: A mixture of neon and nitrogen gases is maintained in a 8.77 L flask at a pressure of 2.88 atm and a…

A: Assume that the mixture is an Ideal gas and apply the Ideal gas equation. PV =ntotalRT P is the…

Q: 6. What is the pH of a 0.75 M HNO3 solution? 7. What is the pH of a 0.050 M LiOH solution? 8. What…

A: (6) Consider the given information as follows; The concentration of HNO3 solution = 0.75 M…

Q: Calculate the change in standard entropy (AS, J K-¹) for the following reaction: 2 NH3(g) N₂ (g) + 3…

A: Change in entropy is the measure of degree of randomness or disorder in the system. It is an…

Q: How many grams of ammonium chloride must be added to 0.53 L of 1.7 M ammonia to prepare a pH = 10.01…

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

Q: Consider the dissolution of nitrous acid: HNO₂(aq) = H(aq) + NO₂ (aq). For this reaction under…

A: The given reaction is the dissolution of nitrous acid HNO2(aq) ⇌H+(aq) + NO2-(aq) The given data The…

Q: What is the role of heavy metals in environmental pollution and how can they be controlled?

A: Heavy metals are a group of elements that have a high atomic weight and density, and are toxic to…

Q: Estimate the value of the rate constant k. Express your answer in liters per mole per second to…

A: Consider the given information as follows; A   →    products  Rate constant (k) =?

Q: What is the molar solubility of Sr(OH)2 in water (in M)? (Ksp =3.2 x 10-4 for Sr(OH)2)

A:

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.