MEAICI, -95 °C Ph Ph НО

Q: Write the chemical formula of the following complex ions. formula name pentacarbonylcobalt(III) ?…

A: Write the chemical formula of the given::

Q: 17. What is the sign (positive or negative) of the entropy change (AS) for each of the following a.…

A: The entropy change is defined as the difference of entropies of the product and that of reactant. So…

Q: What are the products of the following double replacement reaction? balance the equation    Calcium…

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Q: CH, c=c CH3 H (1) major organic product ROOR hv (3) process H20, Hgso, (2) enol product (4) keto…

A: The first substrate undergoes polymerization reaction in the presence of peroxide, ROOR and light.…

Q: Reaction 2: 20F2(g) 02(g) + 2 F2(g) AH = -49.4 kJ Reaction 3: N2(g) + 202(g)- 2NO2(g) AH = +66.4 kJ…

A: Given reaction 2, 2OF2(g) -----> O2(g) + 2F2(g)

Q: 2. a. Provide mechanisms and/or products for the following transformation. NE2 `Me (-5 equiv) H Me…

A: Reaction 1 : Acid catalyzed enamine synthesis followed by Diels Alder reaction.

Q: Which reaction(s) will be spontaneous at all temperatures? Question 23 options: A) 4NH3(g) +…

A: The change in Gibbs free energy (∆G) is given by the relation ∆G = ∆H - T∆S  ∆H = change in enthalpy…

Q: Our first metal is a chunk of solid calcium metal. When we place it in unheated distilled water, we…

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Q: Part A Calculate the theoretical yield of C,H;Cl when 140 g of C,Hs reacts with 228 g of Cl2,…

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Q: MeO HN MeN Br 'Me

A: Reaction 1 : Starting material is treated with ammonia and heating. Reaction 2 : N-methylation using…

Q: Three structural isomers have the formula C,H,. Draw and name the isomers using IUPAC names. Use a…

A: Structural isomer are the isomers having same molecular formula but different structural formula.

Q: If an ideal gas has a pressure of 7.01 atm, a temperature of 14.77 °C, and a volume of 68.71 L, how…

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Q: 7. What is Polarography? Which equation is used in Polarography? Draw a typical d.m.e.

A: Polarography is a type of voltammetry where the working electrode is a dropping mercury electrode…

Q: What is the lowest allowed energy for a F8* atom? -5.45 x 1017J O -1.07 x 1016 J -2.18 x 1018 O…

A: Given that, Lowest energy for F8+ ?

Q: Identify the products of the two reactions of glucose. СНО H- -ОН Cu2*/OH H2/Pt Но- -H- H- HO- H HO-…

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Q: It required 20.1 mL of an aqueous HCl solution to react completely with 0.1060 g Na₂CO, (105.99…

A: Given, Volume of HCl solution = 20.1 mL = 0.0201 L Mass of sodium carbonate (Na2CO3) = 0.1060 g…

Q: To what temperature does a 0.25 L cylinder containing 0.10 moles of helium gas need to be cooled in…

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Q: The Ksp for CdCO3 at a certain temperature is equal to 5.51x10-12. What is the molar solubility of…

A: In this question we have to tell the molar solubility of CdCO3 .

Q: Which equations heat, cool and can either heat or cool the surroundings? C4H4S(s) → C4H4S(l)…

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Q: Cve the mechamis m for given bleous reaction n HO.

A: The reaction occurs in a 2- step synthesis reaction. It's mechanism is shown in the following step.

Q: Calculate the molarity of a solution prepared by dissolving 5.845 g of sodium chloride (NaCl) in…

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Q: 1. Predict which substance has greater molar entropy. Explain. (a) CH4(g) or CCl4(l) (b) NO2(g) or…

A: The answer of the above mentioned question is shown below:

Q: How many grams of KOH are in 150.0 mL of an aqueous 0.138 M KOH solution? (M=molarity

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Q: 34. Which statement is true about phase diagrams? A) The triple point temperature is the lowest…

A: For most substances , triple point is minimum temperature  at which liquid can exist.

Q: 11. OMe Me

A: Step 1 : Birch reduction. Step 2 : reaction with acid Step 3 : C-alkylation. Step 4 : Robinson…

Q: Question 20 What is the product of the reaction of the vicinal dihalide shown below? H H fused KOH…

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Q: 4. Br MeO Meo Me 5. Me Meo

A: 4. Ylide preparation followed by Wittig reaction. 5. Ylide preparation followed by Wittig reaction.…

Q: If the K of a monoprotic weak acid is 4.0 x 10-6, what is the pH of a 0.10 M solution of this acid?…

A: In this question we have to tell the PH of the solution.

Q: A student dissolves 20. g of aniline (CH,NH,) in 500. mL of a solvent with a density of 0.83 g/mL.…

A: Given :- mass of aniline = 20.g  Volume of solvent = 500.mL  Density of solvent = 0.83 g/mL  To…

Q: #2 - Draw the step-by-step mechanism for each of the steps in the following reaction sequence. Be…

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Q: Br Meo Meo Me

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Q: What reagents are needed to carry out the conversion shown? NH2 A OH C D NH2 O KOH; H2/Pt; excess…

A: Carbonyl compound can be converted into amine compound in presence of NH3 and reducing agent (…

Q: 8 10 11 12 13 14 A chemist titrates 150.0 mL of a 0.2250M trimethylamine ((CH,) N) solution with…

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Q: Part A Part complete [OH−][OH−] = 3.8×10−11 MM Express your answer using two decimal places.…

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Q: Question 1 What is the order of an E2 reaction? O third order O zeroth order O second order O first…

A: E2 reaction is a bimolecular elimination reaction and it is one step mechanism.

Q: 1 A certain liquid X has a normal freezing point of -7.40 °C and a freezing point depression…

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Q: A 36.5 liter balloon holding 2.9 moles of carbon dioxide leaks. If we are able to determine that 1.2…

A: Given :  Initial moles of gas = 2.9 mol  Initial volume = 36.5 L  No.of moles of gas escaped = 1.2…

Q: mol O2

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Q: Calculate the mass (g) of HC2H3O2 in vinegar (moles HC2H302 X Molar Mass HC2H302) mol Calculate %…

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Q: 12.2 g of 2-methylbutan-2-ol (MW 88.15 g/mol) reacts with excess H2SO4 to form 7.98 g of…

A: Given data,Mass of 2-methylbutan-2-ol=12.2 gMolecular weight of 2-methylbutan-2-ol=88.15 g/molMass…

Q: 120 loo 60 40 20 Reaction progiess whet is the activadion energa for this reaction kj lmol? in 132…

A: - Activation energy is the energy which is inversely proportional to rate of reaction .If activation…

Q: Draw the Lewis structure of PF3 and PI3.  Determine which statement best describes the Lewis acid or…

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Q: Br MeO MeO Me

A: Witting reaction: The Wittig reaction or Wittig olefination is a chemical reaction of an aldehyde or…

Q: 1 At what point do a solid and gas exist at equilibrium? A Boiling point B Melting point C…

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Q: 16. How many grams of Cu are plated out from a CUSO4 solution by a current of 10.0 amps flowing for…

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Q: Determine the pOHpOH of each solution.

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: A 335 −mL−mL can of soda pop contains 44 gg of sucrose (C12H22O11C12H22O11). Part A What is the…

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Q: Al + HCI --> AICI3 + H2 a. When this equation is balanced, what is the sum of the coefficients? b.…

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: A solution is labeled "1.25 M calcium chloride.” Calculate the concentration of each ion present in…

A: In this question we have to tell the concentration of each ion present in solution.

Q: For citric acid  H3C6H5O7, what reaction would correspond to Ka3

A: Given :- chemical formula of citric acid = H3C6H5O7  To write :- its reaction correspond to Ka3

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.