. Using the Born-Mayer Equation, calculate the lattice enthalpy for wurtzite, ZnS. You must ook up the appropriate parameters for the equation.

Q: When the Cu²+ concentration is 4.28x104 M, the observed cell potential at 298K for an…

A:

Q: An unknown sugar is known to equilibrate between two forms, I and II, in aqueous solution. This…

A: When species I was dissolved in pure water and the optical rotation was measured, it gave aspecific…

Q: 29. Which radiation has the lower frequency: (a) radio waves from an AM radio station broadcasting…

A:

Q: 1. Each of the following compounds can be prepared by a mixed aldol condensation reaction. Give the…

A: Since you have posted a question with multiple subparts of same type , so we will solve the first…

Q: Consider the combustion of acetylene in nitrous oxide. C₂H₂(g) +5N₂O(g) → 2 CO₂(g) +5N₂ (g)…

A: We have find out the solution.

Q: Why is the second step the rate determining step?   The experimentally determined rate law is rate…

A: Answer: Law of mass action: Law of mass action states that the rate of reaction is directly…

Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)₂(aq), until no further…

A:

Q: 15.2) Name the products of the phosphorylation of ADP reaction shown below. NOTE: You do not need to…

A:

Q: the following formula from an experiment of determing the empirical formula of hydrated copper…

A:

Q: A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion…

A:

Q: In a cell with Zn/Zn2+ and Cu/Cu2+ electrodes, _______.   a. Cu is oxidized and Zn2+ is reduced.…

A: Galvanic cell is type of cell that converts chemical energy into electrical energy via spontaneous…

Q: Calculate the solubility at 25 °C of PbCrO4 in pure water and in a 0.0170M Na₂ CrO4 solution. You'll…

A:

Q: 11) The reaction of NO₂(g) and CO(g) is thought to occur in two steps: a. b. d. Step 1: slow NO(g) +…

A: Please find your solution below : The rate of reaction is the speed at which a chemical reaction…

Q: What is the significance of the Born-Haber cycle in understanding the formation of ionic compounds?

A: The Born-Haber cycle is a theoretical cycle that describes the various steps involved in the…

Q: 15.7) Determine whether each of the following changes is an oxidation or reduction. a) gain of…

A: If any species( atom or ion) gains electrons, the process is called reduction.  Example -  A + e–…

Q: Choose the reaction that represents the combustion of C6H1202. C6H12O2(1) + 8 O2(g) →6 CO2(g) + 6…

A:

Q: TMS is usually used in NMR as a standard because it is soluble in a variety of solvents. It is,…

A: TMS is used as internal standard to get the NMR data for the compounds which are soluble in organic…

Q: b. [Fe(en)Cl₂I₂]² where en = ethylenediamine CN= number of d-electrons = What is the spin-only…

A: The given compound is [Fe(en)Cl2I2]2- where en = ethylene diamine. Coordination compounds are the…

Q: d. (131)

A:

Q: 2. A mixture of nitric acid and nitrous acid is formed when water reacts with dinitrogen tetroxide.

A: Reaction when water reacts with dinitrogen tetroxide to form nitric acid and nitrous acid :

Q: Please help me fill the remaining spaces. The spaces marked with NA don't need to be calculate.…

A: We are given a table and we have to fill in the missing values.

Q: W Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of Na2CO3…

A: The question is based on the concept of chemical reactions. we need to write net Ionic equation for…

Q: Select the major product of the following reactions. EtO I I O IV O II OH OEt 1. NaOEt 2. CH3I 3.…

A: -> Base (NaOEt) can abstract most acidic hydrogen from abstract and form nucleophile which can…

Q: The solubility product constant for a certain metal sulfide, M2S is Ksp = 2.9 × 10−23. Its molar…

A:

Q: Reaction Progress →→→ 14) s) If a reaction has an enthalpy of reaction of 126.5 kJ/mol and the…

A: Enthalpy of the reaction (∆H) = 126.5 kJ/mol  Activation energy of the reverse reaction ( Ea, r ) =…

Q: Calculate the equilibrium constant for the voltaic cell under standard conditions at 25 C utilizing…

A: In the above reaction given the cell notation-  Sn(s)|Sn+2(aq)||Fe+3(aq)|Fe (s). We have to…

Q: What are the net ionic equations for the following equations? Si(s) + HCl(aq) S(s) + HCl(aq) CO₂(g)…

A: Need to determine net ionic equation for the following equations

Q: 3) Draw the product formed when allylic alcohol (shown below) is treated with each reagent. A) H₂ +…

A: A C=C bond is reduced by hydrogen gas in the presence of a metal catalyst. In this reaction, two…

Q: Consider a gas mixture composed of 0.200 mol N2, 0.0800 mol O2, and 0.0200 mol Ar.  The total…

A: Mole N2= 0.200  Mole O2= 0.0800  Mole Ar= 0.0200    Total mole= 0.200+0.0800+0.0200  Total mole=…

Q: ΔΤ. (T final-Tinitial) water AT metal 9 water p(metal) Approximate molar mass (MM) of metal Trial 1…

A: Calculation of specific heat of metal

Q: Which is the correct depiction of the transition state for the reaction shown below? a с A b B…

A: The transition state of any chemical reaction is a state at which the new bond formation, old bond…

Q: 4. A green flame is observed when copper(II) chloride is heated in a flame (Figure P7.144). a. Write…

A: a). Copper atom belongs to first transition series or can say d- block elements The atomic number of…

Q: Balance the chemical equation given below, and determine the number of grams of MgO needed to…

A:

Q: 35. a. b. C. d. e. Calculate the equilibrium constant for this redox reaction at 298 K. 21- (aq) +…

A:

Q: 2. What would you expect to happen when a strip of lead is placed in an aqueous solution of…

A: As per our guidelines We are supposed to answer only the first question ,hence kindly repost the…

Q: How many moles are present in a 50.00 mL sample of heptane? Heptane (C7H16) has a density of 0.6795…

A: Volume of Heptane= 50 mL  Density= 0.6795 g/ mL  Density is equal to weight of substance divide by…

Q: Which of the following can form hybrid orbitals? Group of answer choices Only sigma bond electrons…

A:

Q: Calculate the entropy change of formation for C6H12O6 if the reaction C6H12O6(s) + 6 O₂(g) →6 CO2(g)…

A:

Q: Molly inflates a beach ball to a volume of 8 liters in her air-conditioned house where the…

A: Charles law states that at constant pressure,  the volume occupied by a fixed amount of gas is…

Q: Predict the products from the following reaction after a mildly acidic workup. riease show a…

A: Here, an ester undergoes reaction in presence of excess CH3Li followed by acidic workup.

Q: 5. Provide a detailed arrow pushing mechanism for the transformation shown below. Clearly show all…

A: We have to draw the mechanism for the reaction

Q: 2.Draw the structure corresponding to the following names: 6-chloro-2,3-dimethylphenol a) b)…

A: In the case of substituted phenols the position of substituents are located with respect to the…

Q: Macmillan Learning Predict the main organic product in each of the three monosaccharide reactions.…

A:

Q: Which choice(s) shows the structure of cis-1,2-dibromocyclopentane? A) 1 B) II c) III I and II (E),…

A: The question is based on the concept of organic reactions . we need to identify correct…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A: As we know, ∆G = ∆H - T∆S  A reaction is Spontaneous if ∆G is negative.  While reverse reaction is…

Q: PQ-2. What is the major product? (A) CH₂CH3 to H3C CO₂H H3CH₂C CH3 HO₂C CH3 HạCH,CO,C CO,CH,CH3 (B)…

A: -> Base (NaOCH3) can abstract most acidic hydrogen atom from given substrate and form nucleophile…

Q: The voltage generated by the zinc concentration cell described by the line notation Zn(s) | Zn²+(aq,…

A:

Q: each case, he fills a reaction vessel with some mixture of the reactants and products at a constant…

A: As we kn∆G = ∆H - T∆S  A reaction is Spontaneous if ∆G is negative.  While reverse reaction is…

Q: Which set of reactants will form a precipitate when mixed? OKOH + Li2S (NH4)2SO 4 + LICI Sr(C 2H 30…

A: The question is based on the concept of chemical reactions. we need to identify the reaction in…

Q: 4. At which electrode in a voltaic cell does reduction always occur? 5. The diagram below is of a…

A: Note: As per the guidelines, solution of 4th and 5th question has been made. For the expert solution…

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.