How many grams of C&H liquid must decompose according to the following chemical equation to transfer 430 KJ of heat? C6H6(1)→ 3 C₂H₂(g) AH = 630 kJ

Q: What is the sign for the change in entropy (ΔSsys) for this chemical reaction? 2 NOCl (g)   →   N2…

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Q: Determine the missing concentration for the following voltaic cell at 25 °C Cr(s) | Cr³(aq, 0.0022…

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Q: Select all crossed aldol products. с & a) H2O b) c) NaOH d) f) 9) OH д HO OH OH НО о

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Q: For each row in the table below, decide whether the pair of elements will form a molecular compound…

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Q: Q3. Consider the ring closing metathesis (RCM) sequence used for the synthesis of macrocycle E and…

A: We have to convert the ester F into E. Also, we have to give the synthesis of F from G and H.

Q: Order: heparin sodium 20,000 units IV in 500 mL of 0.5 NS to infuse at 1,200 units/hour. What is the…

A: Use flow rate formula.

Q: You dissolve 4.69 mol of glucose into a total volume of 493 mL. What is the molarity of glucose in…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: How many grams of manganese metal will be deposited from a solution that contains Mn2+ ions if a…

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Q: Sulfur dioxide and oxygen react to form sulfur trioxide, like this: 2 SO₂(g) + O₂(g) 2 SO₂(g) The…

A: Here given that forward reaction is exothermic whereas the backward reaction is endothermic , Now if…

Q: A reconstituted suspension loses 20.00% of its potency after 8 days in a refrigerator. Give the…

A: The loss of potency of suspension is zero order reaction and considering that expiry date was…

Q: What is the maximum amount of useful work that could possibly be obtained at 25 °C and 1 atm from…

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Q: Which of the following reactions is an acid-base reaction? A) AgNO3(aq) + KF(aq) → AgF(s) + KNO3(aq)…

A: The answers of the two MCQ problems are given below-

Q: OH Br₂ H₂C H₂C CH₂. Br

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Q: (a) Write down the electronic configuration of an atom of the following elements in s, p, d…

A: 1.Al - Atomic No 13  [Al] - [Ne] 3s2² 3p¹ 2. Cl → atomic number 17  [Cl] - [Ne] 3s² 3p⁵ 3. Ca →…

Q: What is 4,260 µg/mL in units of mg/mL? Give your answer with three digits after the decimal.

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Q: When the Ag+ concentration is 1.27 M, the observed cell potential at 298K for an electrochemical…

A: Given reaction: 3Ag+(aq) + Cr(s) → 3Ag(s) + Cr3+(aq) [Ag+] = 1.27 M The observed cell potential at…

Q: Consider the following equilibrium: N₂(g) + 3H₂(g) AG-34. KJ Now suppose a reaction vessel is filled…

A: In this equilibrium, the ammonia molecule is broken into nitrogen and hydrogen gas. The equilibrium…

Q: Use the indicated average bond enthalpies to estimate the change in enthalpy, ΔHo, for the reaction…

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Q: Give the major organic product(s) of each of the following reactions or sequences of reactions.…

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Q: Preventing iron auto parts from corroding or rusting can be accomplished by electroplating the iron…

A: This question is based on electroplating of chromium on iron articles.And we are asked to write the…

Q: Indicate which one statement is not true by checking the box in front of the untrue statement.…

A: A cation will have a smaller radius than its corresponding atom, because the number of electrons is…

Q: 3. Determine which nuclide will be unstable. justify your answer, and give the nuclear" reaction for…

A: Elements having greater (neutron /protons) ratio has a tendency to undergoes radioactive decay…

Q: Calculate the average kinetic energy, in J/mol, for a mole of CH₄ at -23.0 °C. Assume ideal gas…

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Q: Calculate the root-mean-square velocity, in m/s, for a nitrogen molecule at 11.7 °C. The universal…

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Q: 6. What is the value of the proportionality constant between the graphed variables? variable ratio…

A: Here we need to find the proportionality constant between the graphed variables. Here in x axis, x…

Q: Propose an efficient synthesis for the following transformation: OH OH The transformation above can…

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Q: Diastereoselectivity O Any/all of these factors O A chiral center with bulky substituents at the…

A: Stereoselectivity or diastereoselectivity in aldol reaction is observed when two stereogenic centers…

Q: A mixture of two gases with a total pressure of 3.32 atm contains 0.50 atm of Gas A. What is the…

A: Given Total pressure (Pt) = 3.32 atm Partial Pressure of Gas A (PA) = 0.50 atm To find  Partial…

Q: 8. [Ch. 20] Chlorine dioxide (CIO) is produced by the reaction 2NaCIO:(aq) + Cl;(g) → 2C1O:(g) +…

A: Given that, the preparation reaction of chlorine dioxide is shown below 2NaClO2aq + Cl2g →2ClO2g +…

Q: 2) What position on the (deoxy)ribose attaches to the nucleobase? 3) Why are the (deoxy)ribose atoms…

A: 2.Answer:-  the nucleobase are attached to the C1C1 ( carbon -1) position of the deoxyribose sugar…

Q: What is the difference between Tollens reagent and other oxidizing agents? What is its importance?…

A: A Tollens reagent test is carried out to distinguish between the two. Using mild oxidising agents,…

Q: Which product is formed by the reaction? 이 + b OH ONa ㅅ XX e. none are correct

A: Ethers are prepared by using Williamson synthesis. Williamson synthesis is an SN2 reaction between…

Q: 2NO(g) + O₂(g) → 2NO₂(g) AG reaction = kJ Ca(OH)2(s) + 2HCI(g) → CaCl₂(s) + 2H₂O(g) AG reaction = kJ

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Q: In the following reaction, what is the quantity of heat (in kJ) released when 4.01 moles of CH4 are…

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Q: Draw all diastereomers and enantiomers for this compound.

A: Well the given compound has two chiral centers. So total number of stereoisomers is  2n=22=4  So we…

Q: What is S° for B in the reaction 3 A → 2 B if ∆S°(rxn) =-275.5 J/mol ･ K? [S° (A) = (205.0 J/mol…

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Q: An analyst notes that a 1 ppm solution of sodium gives a flame emission signal of 110. While the…

A: Solution

Q: 3. Determine which nuclide will be unstable, justify your answer, and give the nuclear" reaction for…

A: We have just calculate the N/P ratio and determine if they are falling under stability belt region…

Q: ) The standard cell potential (Eºcell) for the voltaic cell based on the reaction 3Sn4+ (aq) + 2Cr…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. Hg(OAc)2, CH3OH 2. NaBH4,…

A: We have to give the major product of the given reaction. Introduction:…

Q: Macmillan G A sample of N₂ gas has a volume of 23.0 L at a pressure of 1.50 atm and a temperature of…

A: is

Q: 4. What is a product of following reaction? Br a. 1 b. 2 кон C.3 d. 1 and 2 -KBr OH 1. 2. No 3. M Br

A: -> KOH has nucleophilic part OH- . Hence, it can give nucleophilic substitution reaction.

Q: 11. Calculate the mass of NaCl that will just start to form a precipitate when added to 800 mL of…

A: Lead(II) ions of Lead(II) nitrate reacts with chloride ion of NaCl to form a PbCl2 precipitate.…

Q: At what temperature does sulfur hexafluoride have a density of 0.6250 g/L at 0.8210 atm?

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Q: We can write the dissociation of gaseous iodine as: 1₂(g) 21(g) Equilibrium is reached at 1400°C…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the pressure of the…

Q: Macmillan Learning A balloon containing methane gas has a volume of 5.31 L at 65.0 °C. What volume…

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Q: In step 1, where did you get the value of -2.303?

A: We have to tell from where the value -2.303 appeared. Introduction: Nernst equation.

Q: What is the pH of a 0.010 0 M solution of sodium hydrogen phosphate, also known as dibasic sodium…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: 1. mCPBA 2.H30 Click and drag to drawing a structu

A: Epoxidation reaction take place.

Q: The compound below is treated with chlorine in the presence of light. CH3 CH3CHCH₂CH3 Draw the…

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.