KMnO4, H₂O (hot, concd.)

Q: Read the water level with the correct number of significant figures 20.40 mL 36.0 mL 24 mL 24.0 mL…

A: The volume of water can be decided by observing the level in the container.

Q: A student prepares a 1.0M aqueous solution of 4-chlorobutanoic acid (C₂HCICO₂H). Calculate the…

A: Concentration of 4-chlorobutanoic acid = 1M

Q: MX2 is an insoluble salt at 25°C, where M²+ = metal cation and X™ = nonmetal anion. Which statement…

A: MX2 is sparingly soluble salt which dissolves in its aqueous solution to give M+2 action and X-…

Q: reactant 28. 29. HO 30. он 0₂ cat Cul TEMPO OH OH C+| Ni product Sapoor+00 0₂ cat Fell TEMPO…

A: Advantages 1)   TEMPO is highly selective and can selectively oxidize primary alcohols to…

Q: Draw the structure of the product of this reaction. CH₂₂ Zn(Cu) Assume that CH₂l₂ is present in…

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Q: Calculate ΔH per the reaction NO(g) + O(g)-> NO2(g) Data: NO(g) + O(g)-> NO(g) + O2(g)      ΔH=…

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Q: What is the pH of the resulting solution when 12.50 mL of 0.45 M HCI is titrated with 17.00 mL of…

A: To solve this problem, we need to use the balanced chemical equation for the reaction between…

Q: How many total optical isomers would exist for the compound shown below?

A: Optical isomers which contains the chiral carbon. Carbon is attached to four different groups is…

Q: Starting from benzene and any other organic compounds with four or fewer carbons, synthesize the…

A: Synthesis of 3 bromo acetophenone from benzene

Q: Describe how you would make 1.50 liters of a 1.36 M solution of HCI solution from a 12.1 M stock…

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Q: Two compounds (CaCl2 x 2H2O and CaSO4 x H2O) missing labels were left on the bench by your…

A: Percentage of water loss = [(Mass of water loss) / Initial mass of  Compound] x 100   Mass of water…

Q: Which of the following combinations of substances, when combined in roughly equal amounts, will…

A: A buffer solution is a solution that can resist changes in pH when small amounts of acid or base are…

Q: When a new center of chirality is created, isomers can result. For the reaction below, specify the…

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Q: Draw the product of this reaction. Ignore inorganic byproducts. Br2 Q

A: Alkene reacts with halogens through a halonium ion intermediate to form vicinal dihalides. The…

Q: Consider the titration of 30.0 mL of 0.275 M weak base B (Kb = 1.3 x 10⁻¹⁰) with 0.150 M HI. How…

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Q: What is the pH of 3.0 × 10-3 M HCI? pH = What is the pH of 8 × 10-8 M HCl? pH =

A: Given,  I) Molarity of HCl = 3.0 x 10-3 M.  ii) Molarity of HCl = 8 × 10-8 M.

Q: In an HPLC analysis, 10.0 microliters of a sample was sucked into a syringe and loaded into a…

A: In HPLC analysis, the amount of sample injected into the head of the column depends on the size of…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: The relationship between the Ka ( acid dissociation constant) and pKa of the acid is given by,…

Q: Which of the following combinations can be used to make a buffer? (Assume equal volumes are used.)…

A: A buffer solution is a mixture that is added to avoid the pH changes that happen during the…

Q: 0= 0: OH ZI

A: We have to write down the IUPAC names for the given molecules.

Q: Calculate the percent dissociation of benzoic acid (CH₂CO₂H) in a 3.7 mM aqueous solution of the…

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Q: whys is E° = 0 , isn't it E°cell = E°red,cathode - E°red,anode E°cell = -(-2.37 V) - (-3.05 V) =…

A: Concentration of reactants = 2 M /or 2 atm Concentration of products = 0.0100 M /or 0.0100 atm Now,…

Q: Draw compounds A and B from the following reaction scheme. CN 1. CH3CH₂MgBr 2. H3O+ A NaBH3CN…

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Q: Which reaction would have a negative entropy change? Circle it. Ag+ (aq) + Cl(aq) → AgCl(s) N₂O4(g)…

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Q: A.) For pentane, the ∆H° of vaporization is 26.22 kJ/mol and the ∆S° of vaporization is 87.88…

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Q: What quantity in moles of CH3NH3CI need to be added to 200.0 mL of a 0.500 M solution of CH3NH2 (Kb…

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Q: 17. What is the pH of a 0.100 mol/L weak base solution with a K, value of 1.68 × 10-6?

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Q: solution initial components A B C D H₂O H₂O, H CIO4 H₂O, H C104 H₂O initial type (check all that…

A: Given, Based on pH scale, The solutions which have pH greater than 7 ( pH>7 ) are basic…

Q: Calculate the percent sodium in SLS, NaC12H25 SO4 Express your answer using two decimal places.

A: Given compound = SLS = NaC12H25SO4

Q: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical…

A: The given reaction inolve the formation of water with the formation of neutral salt KBr. KBr is a…

Q: Draw the structural condensed formula of 5,5-dimethyl-1-hexyne.

A: The condensed formula of a molecule is the formula where the symbols of atoms are listed in order as…

Q: a. This reaction occurs via an SN2 mechanism. What is the rate equation for an SN2 reaction? b. What…

A: SN2 Reaction is bimolecular nucleophilic substitution reaction.  SN2 reaction is single step…

Q: 3-methyl-1-pentene - (1) HI (2) t-BUOK, I-BUOH 1. H₂, Ni 2. EtOH, heat Product in Steo 1: Product in…

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Q: The AE of a system that absorbs 15.4 J of heat and does 6.5 J of work on the surroundings is J. A)…

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Q: High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify…

A: This question is answered by answered by using the simple concept of dimensional analysis using…

Q: QUESTION 46 What are the major products formed in the following reaction? H-I O A. B. O C. OH OH OH…

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Q: Consider the two-step synthesis of cyclopentanecarboxylic acid from cyclopentanol. Identify the…

A: We have to identify the reagent A and reagent b for the given transformation.

Q: Draw the structural condensed form of 3-ethyl-4-methyl-1-hexene.

A: Answer:- This question is answered by using the simple concept of writing the condensed structural…

Q: CHEMWORK A system releases 5.17 x 10 cal of heat and has a calculated AE of -54.0 kJ. How much work…

A: Given: ∆E=-54.0 kJq=-5.17×104 cal   1 cal = 4.184 J5.17×104 cal=216312.8 J=216.313 kJ

Q: Answer, please

A: IUPAC nomenclature used for the systematic naming of the organic molecules.According to IUPAC…

Q: When 28.7 mL of 0.500 M H₂SO4 is added to 28.7 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50…

A: Volume of 0.500 M H2SO4 is 28.7 mL and the volume of 1.00 M KOH is also 28.7 mL. Initial temperature…

Q: A solution contains 0.036 M Ag¹ and 0.031 M Pb²+. If you add Cl¯, AgCl and PbCl₂ will begin to…

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Q: Write the mechanism showing the product of the reaction of CN- with cyclohexanone.

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Q: 3. Show the synthesis of the following compound from the indicated starting material CH₂ CH₂ OH OH

A: CH3: It is an o/p directing group NO2: It is a m directing group

Q: When 18.0 mL of a 7.66 x 10-4 M silver nitrate solution is combined with 25.0 mL of a 8.32 x 10 M…

A: Solubility product quotient, Qsp is the product of the concentrations of the products, each raised…

Q: A chemist dissolves 492. mg of pure barium hydroxide in enough water to make up 70. mL of solution.…

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Q: A. In the context of the hydrolysis reaction shown below please choose the correct product, 2 (only…

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Q: A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10^−5) is titrated with 0.500M HNO3. Calculate the pH after…

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Q: (a) (b) (c) (d) (e) Lysine H2O + HO OH O + OH • OH 설 HSCH 3 acetal formation imine formation enamine…

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Q: What is the effect on the concentration of H* in a solution of HCN if KCN is added to 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.