alculate the bond order of the dioxygen molecule and those of the molecular ions O2-, O22- and O2+? Rank these molecules and ions by order of increasing bond length. Explain your answer. a

Q: 18)The equilibrium constant at 1127 °C for the following endothermic reaction is 571: 2 H₂S (g) -2…

A: Given, at 1127⁰C the following reaction is at equilibrium 2H2S(g) <=> 2H2 (g) + S2(g) We have…

Q: Complete the equation to show how pyridine, C, H, N, acts as a Brønsted-Lowry base in water.…

A: Bronsted Lowry bases are those which can accept the proton in the solution from the counter molecule…

Q: From experimental data, a student determined the concentration of acetic acid in vinegar to be…

A: Given: Measured value = 1.75% True value = 6.50% Calculate : Percent error = ?

Q: The compound below is a mixed triacylglycerol formed from oleic, stearic, and palmitic acids. True…

A: Triacylglycerols are formed by linking fatty acids with an ester linkage to three alcohol groups in…

Q: Peak 1: 7.96 ppm Region from 8.0-7.3 ppm Zoomed in 2H Doublet 9 HR201102501MS 7.86 7.66 WZ 8 Peak 2:…

A: Analysis of sample through IR and NMR spectroscopy. Total 4 peaks appear in HNMR.

Q: How many grams of NaOH are required to prepare 240. mL of a 3.50 M NaOH solution?

A: Molarity is one of the ways to represent the concentration of the solution.  Here we are required to…

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A: Sulphanilic acid is insoluble in both water as well as in acid because it can not form hydrogen…

Q: Balance the following chemical reactions: _____ CaCl2 + _____ AgNO3 → _____ Ca(NO3)2 + _____ AgCl…

A: Balancing of chemical reactions.

Q: Why was the first step necessary?

A: Carbonyl compound (aldehyde and ketone) reacts with an alcohol to form hemiacetal in the presence of…

Q: A beaker contains 29.9 mL of propane (C3Hg, density is 0.500 g/mL). Determine how many C atoms this…

A: Given: The volume of C3H8 = 29.9 mL The density of C3H8 = 0.500 g/mL We have to find the number of C…

Q: D Question 33 What are the hybridization state, molecular geometry and approximate bond angle for…

A: Number of electron pair on central atom (bp + lp)C Hybridization Molecular geometry Bond angle…

Q: Hi, Can someone help me with this question? I cannot seem to figure out how to solve this. Thanks!…

A: Given:  ∆H°(NH3) = -46 kJ  ∆S°(NH3) = 192.5 J/mol.K  ∆S°(N2) = 191.5 J/mol.K  ∆S°(H2) = 130.6…

Q: A closed vessel is charged with 0.74 bar of hydrogen gas and allowed to react with excess I2(s) at…

A:

Q: 17.52 Use three-letter and one-letter abbreviations to write the amino acid sequence for the peptide…

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Q: 73. Calculate the pH of each solution. (a) [OH-] = 1.9 × 10-7 M (b) [OH-] = 2.6 × 10-8 M (c) [OH-] =…

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Q: What would be the best sequence of reactions/reagents to use for this transformation (the one that…

A: We have to carry out the following synthesis.

Q: In a 0.09 M solution of chlorous acid, what percentage of the acid is ionized to the chlorous anion,…

A:

Q: The total number of valence electrons in the ion [BrO3] is 28 26 22 24

A:

Q: Biological enzymes often incorporate metal ions for the purpose of carrying out electron transfer…

A: The concept used here is from basic chemistry.  Given enzyme incorporates with 2 Fe atoms Also mass…

Q: Which of the following choices is a diastereomer of the first structure shown. 女 女女女女 IV 11 1 OA OC…

A: In this question, we will see the structure of the diastereomer.  Diastereomers compound have same…

Q: Propose a reasonable mechanism for this reaction. ax Br water/ethanol heat + HBr

A: We have been given a chemical reaction and asked to propose a reasonable mechanism for the same.

Q: Question 55 what kind of functional groups are present in the given molecules. Please write the name…

A: functional group is a substituent or moiety in a molecule that causes the molecule's characteristic…

Q: 4) 5) 6) CH3-CH-COOH NH₂ HO Н HO- Н H Н -ОН -Н -OH -ОН CH2OH [H] [H] LiAIH4 -CH2-CH-СООН NH₂ Ca(OH)…

A: LiAlH4 is an strong reducing agent . Thus it will reduce completely as it is a very good source of…

Q: Why are carboxylic acids more acidic than phenols?

A: Both phenol and Carboxylic acids are acidic in nature.

Q: Question 39 What is the name of the compounds CH₂CH₂COCH₂CH₂ A. Penten-3-one O B. Penten-2-one O C.…

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Exercise: Calculate the pH of the solution obtained by mixing 10 mL of 0.20 M H₂SO4 and 20 mL of…

A:

Q: 10. The term "ppm" is often applied to aqueous solutions. Which c the following concentration units…

A:

Q: Which set of quantum numbers are not allowed? ml A) B) C) D) E) n 3 4 2 1 2 ! 2 1 1 HOL 0 1 。。 0 ms…

A: Here, we have to find the set of quantum numbers that are not allowed.

Q: Consider the dissolution of slightly soluble salt, PbCl2 (Ksp = 1.70 x 10-5): PbCl2(s)      ⇌…

A:

Q: Question 49 Which of the following is the major E2 product formed from the following alkyl halide? 2…

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Q: Ⓡ Rank the alkyl halides shown in the order of increasing reactivity for an E2 mechanism. (Left…

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Q: One of the most common ways of dealing with bacterial infections is amoxicillin (MW = 365.4 g/mol),…

A: Given, MW of Amoxicillin: 365.4 g/mol 250 mg amoxicillin per 5 mL of solution.

Q: Use the thermodynamic data below to compute the average bond enthalpy of the metal-ligand bonds in…

A: The concept used here is from. Thermodynamics of physical chemistry.  Here we have to find average…

Q: It says the solution is incorrect

A: Given that, for carbon-11 The half-life is t1/2 = 20.3 min. The initial amount is N0 = 1×107 atoms.…

Q: A 1.000 g sample of strontium-90 decays to 0.900 g after 2.5 years. What is the half-life? How much…

A:

Q: A 25.00-mL sample of an H₂SO4 solution of unknown oncentration is titrated with a 0.1322 M KOH…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: The equilibrium expression for the the reaction: H2(g) + I2(g) 2HI(g) would be: Given the…

A:

Q: Which of the alcohols is 3°? CB 5-од. OH 111 0 A) ОН O B) 0 c) 1 || X. 4 CH, IV -CH₂

A: Since, If carbon containing -OH is surrounded by three carbon then alcohol is known as 3° alcohol.…

Q: Which of the following correctly identifies the vicinal and geminale dihalides? a d III O D) OC) O…

A: Gem and vicinal dihalide are two  types of dihalide compound.  Here structure of different types of…

Q: a. НО ОН Н (one of the products) b. НО Н ОН (one of the products)

A: Syn addition of diol in alkene OsO4, H2O "OR" KMnO4, H2O   Anti addition of diol in alkene SeO2, H2O…

Q: Use the thermodynamic data given below to compute the formation constant, Kf for [Zn(NH3)4]2+ in…

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Q: Given the reaction: N2(g) + 3 H2(g) 2 NH3(g) If the system is at equilibrium, what will happen is…

A: In the given questions, we have to find the change in equilibrium direction on given changes.

Q: What are the basic differences between absorption & adsorption, and sorption?

A: Surface chemistry is the study of the chemical phenomena that occur at the interface of two surfaces…

Q: The following figure represents a small portion of an acetic acid-acetate buffer. (Solvent molecules…

A: pH of buffer solution can be calculated using Henderson hasselbalch equation.

Q: 2. For the following reaction, predict the major product and propose a full mechanism (including all…

A: This is a addition reaction and follows markownikov's rule which states that electronegative part…

Q: What pH corresponds to each of the following? a) [H] = 7.3 x 10-5 M b) [H] 0.084 M =

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Q: aromatic)? O U 0 U 0 B D M F compounds above will have & electrons in 12 conjugated pl-system (and

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Q: Calculate the standard Gibbs free energy in kJ mol–1.

A: Recall the given half cell reaction,                          Au3+  +  3 e-  →  Au…

Q: What is the matrix effect? How may it affect the results in quantitative analysis?

A: Liquid chromatography- Mass spectrometry (LC-MS) is a very important separation technique.