N of NH O Br 1. 2. H3O+ 1. NaOH 2. ~ 3. H30*, heat 1. NH3, H* 2. KCN, H* 3. H30* Br

Q: Boron forms a variety of unusual compounds with hydrogen. A chemist isolated 6.3 mg of one of the…

A: Given, Pressure, P = 11 torr = 0.0145 atm Volume, V = 385 mL = 0.385 L Temperature = 25.0 oC = 298 K…

Q: Name the following complex ions. formula Mn Br [Co (CN),] [Cr(CO₂)₂] name X S ?

A: Name the given complexes ---

Q: D X Ⓡ Y Salt bridge A+ B- X2+ -Y2+ In this cell, the half-cell containing X is the In this cell, the…

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Q: For a reaction with the rate law below: Rate = k O a plot of log [A]o/[A] vs. 1/time gives a…

A: Given rate law, rate = k Rate is independent of concentration.

Q: Calculate AG in kJ-mol-1 at 298 K for the following reaction: 2 A(g) + B2(g) → 2 AB(s) AGO = -95…

A: Given-> ∆G°= -95 Kj/mole = -95000 J/mole (1KJ = 1000 J) P(A) = 0.155 atm P(B2) = 0.535 atm

Q: Calculate the pH of 1.60 M H₂SO4.

A: Given : Concentration of H2SO4 = 1.60 M

Q: MOTION EYE OWLv2 | Online t S Geometry w/Dat S Practice 10.10 | S S Geometry w/Dat Sign in - Google…

A: This question is related to chemical equilibrium. According to Le Chatelier's principle, a system at…

Q: From the change in internal energy, AE, given for 25 °C, calculate the change in enthalpy, AH, at…

A: Given, change in internal energy, ∆E = -161.6 KJ = -161.6 × 103 J Temperature, T = 25 oC = 298 K Gas…

Q: Using the values you got from the textbook for enthalpy and entropy, calculate AGO (kJ mol-¹) at…

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Q: A 0.22 M solution of a weak monoprotic acid, HA, has a pH of 3.28. Calculate Ka for the acid. 1.5 ×…

A: pH = 3.28

Q: e standard Gibbs Free Energy, AG n rxn, for th

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Q: For a reaction 2A+B2-2AB AG= 34.8 kJ-mol-1 and AG = 42.4 kJ.mol-1 at a temperature of 143 K.…

A: Given data : 2A + B2 ---->2AB Standard Gibbs free energy = 42.4KJmol-1 Gibbs free energy =…

Q: A chemical reaction is shown below. Which equation best describes the stoichiometry of the reaction?…

A: We knew that according to stoichiometry no of elements in product side will be equal to the no of…

Q: For each item, indicate if it is true for galvanic cells only, electrolytic cells only, both or…

A: Galvanic cell and electrolytic cell are two different types of cell.  Galvanic cell is a cell that…

Q: Consider the 4 molecules below. Which 2 molecules are constitutional/structural isomers of each…

A: Given 4 molecules  Find the constitutional isomer.

Q: 8. 20.0 mL of 0.0155 M NaX is titrated with 0.0245 M HCl. The pH at the equivalence point is 4.25.…

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Q: Barium metal crystallizes in a body-centered cubic lattice (the Ba atoms are at the lattice points…

A: Given, Unit cell edge length → 502 pm Density of the metal → 3.50 g/cm3 To find the Avogadro's…

Q: Patty needs to measure the unknown concentration of Sn2+. A Galvanic cell is set up in a room with a…

A:

Q: conversion of L-Tyrosine into 4-Coumaric Acid

A: conversion of L-Tyrosine into 4-Coumaric Acid is given below

Q: Calculate the standard change in Gibbs free energy for the reaction at 25 °C. Standard Gibbs free…

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Q: 2. What is the use of each apparatus employed for the preparation of Calamine Lotion? Ingredient…

A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present…

Q: 3. Draw the tripeptide described by Phe-Trp-Cys. Your drawing can be condensed structural formula,…

A: Amino acids contain carboxylic acid and an amine functional group on the same carbon atom. Amino…

Q: The Zn in a 0.6803-g sample of foot powder was titrated with 27.3 mL of 0.04246 M EDTA. Calculate…

A: To calculate the percentage of zinc in the foot powder sample, use the EDTA titration. First…

Q: What is the pH of a 0.20 M NaBrO solution? Ką for HBrO = 2.8 × 10-9. O2.78 O 3.45 O 11.39 O 8.76 O…

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Q: 3 12(s) + 2 MnO2(s) + 8 OH(aq) →6 (aq) + 2 MnO4 (aq) + 4H₂O(1) The equilibrium constant for the…

A: Given-> Equilibrium constant (Keq) = 1.66 × 1024

Q: The UV/Vis allows you to determine the concentration of a colored compound. Calculate the value of K…

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Q: For the reaction below, A+2B → AB2 if AG= -29.1 kJ-mol what is the value of K at 298 K? (the answer…

A: The free energy change of the reaction is = -29.1 kJ/mol = -29.1 x 1000 kJ/mol The temperature of…

Q: Which point(s) on the graph of G versus extent of reaction shown below display(s) a point where Q<K?…

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Q: 1054.00 38 1581.98 1032.45 1015.76 100 92 2971.78 2964.30 2842.98 3679 07 1592.72 1574.49 1426.29…

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Q: D. Draw the structures of the major products for the following reactions: H₂, Ni 1.03 2. Zn, HCI…

A: All of the above reactions are electrophilic addition reactions to alkene.

Q: A voltaic cell with an alkaline (basic) aqueous electrolyte is based on the reaction between…

A: Here we are required to find the reaction which would occur at cathode for a voltaic cell

Q: For the reaction below, A+2B → AB2 if AH°= -7.2 kJ.mol-1 and AS°= 8 J-mol-1.K-1, what is the value…

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Q: How many liters of pure oxygen gas, measured at STP, are required for the complete combustion of…

A: Given :- volume of CH4 = 11.2 L  To calculate :- volume of O2(at STP) required for the complete…

Q: IN THE CASE OF ACID-BASIC TITRATION OF TITRATION IN AN AQUATIC MEDIUM OF A SUBSTANCE THAT IS A WEAK…

A: Solutions- Acid base titration of a weak organic salt and HCl in acid- base titration here binding…

Q: What is the pH of a solution that is 0.150 M NH3 and 0.200 M NH4CI? Kb of NH3 = 1.8 x 10-5 O9.26…

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Q: Which is not a natural contaminant of water A. Gases including nitrogen, oxygen, radon, non-metal…

A: 2) the natural contaminant of water doesn't include industrial sewage.

Q: What are the values for standard temperature and pressure (STP) in units of °C and mm Hg? °C and mm…

A: Given : We have to tell the temperature and pressure at STP.

Q: ol, what is AG for the following reaction?

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Q: A sample of a gas in a cylindrical chamber with a movable piston occupied a volume of 4.626 liters…

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Q: What class of molecules is responsible for most of the reducing power in natural waters? What…

A: What class of molecules is responsible for most of the reducing power in natural waters ? What…

Q: For a given chemical reaction, the value of AH is positive and the value of AS is negative. The…

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Q: A combustion reaction is below: CH4(g) + 2O2(g) => CO2(g) + 2H2O(g) What would be the standard…

A: Given chemical reaction is : CH4 (g) + 2O2 (g) ------&gt; CO2 (g) + 2 H2O (g)   When 20 g CH4 reacts…

Q: The chemical environment of protons can be deduced from their chemical shifts. What are the relative…

A: 1H-NMR spectroscopy is mainly used for to complete identification of the structure of unknown…

Q: 07 Question Consider the following standard reduction potentials. O₂(g) +2H₂O(1)-4e-40H (aq) E-0.401…

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Q: → Ni e → Fe 2 eH₂ + 2 OH™ e → Al e → Mg → Na Li roduced at the anode roduced at the cathode oduced…

A: In electrolysis,  Cation moves toward cathode and reduced there . Anion moves toward anode and…

Q: A flashlight dims. Curious, Marinette removes the alkaline battery where two electrons are…

A:

Q: A) Make 500 ml of a 50 X solution of HEPES buffer. B) Use this (50X HEPES Buffer) to make 1 liter of…

A: Required : a) 500 mL of 50X HEPES Buffer b) Make 1 L of 0.5X HEPES from above solution The recipe of…

Q: The specific heat capacity of solid iodine is 0.427 J/g °C. Calculate the final temperature (°C)…

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Q: An arteriole has a diameter of 2.5x10-5 m and blood flow rate of 2.7x10-3 m-s-1. Calculate the…

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Q: A 40.00-mL aliquot of 0.05000 M HNO2 is diluted to 75.00 mL and titrated with 0.0800 M Ce4+. The pH…

A: The potential of the indicator electrode with respect to a saturated calomel reference electrode…

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.