Concept explainers
Interpretation:
The special stability of chelates has to be explained with an example.
Concept Introduction:
Entropy means “randomness or disorderliness”. Entropy is a
The term free energy refers to available energy in the system to do work. Lesser the energy of the system more will be the stability of the system. It is denoted by ‘G’ and change in free energy is represented as
Enthalpy of the system refers to heat content of the system and it is denoted by ‘H’. Change in enthalpy is denoted as
These three thermodynamic terms are related as,
Want to see the full answer?
Check out a sample textbook solutionChapter 22 Solutions
General Chemistry - Standalone book (MindTap Course List)
- A student observes that the solution containing Br₂ is reddish, a solution of Cl₂ is faintly yellow-green, and a solution of 12 is faintly violet. The student mixes a cyclohexane solution containing Br₂ with a halide solution containing I. After mixing, the student observes that the cyclohexane layer is faintly violet. What species is present in the halogen layer? Did a reaction occur? Select one: I₂, no reaction O Br. reaction occurred I2, reaction occurred. Br, no reaction I, reaction occurred Br₂, no reaction I, no reaction Br₂, reaction occurredarrow_forward2. Write the balanced chemical equation for the reaction between iodate and bisulfite. Does the order with respect to each reactant match its stoichiometric coefficient in the balanced reaction? If not, explain how the reaction orders and the stoichiometric ratios can be different.arrow_forwardThe following data were collected for the reaction, H2(g) + L(g) ** - HI(g), at equilibrium at 25°C: [HJ = 0.10 mol L-1, [IJ = 0.20 mol L"\ [HI] = 4.0 mol L’1 Calculate the equilibrium constant for the reaction at this temperature.arrow_forward
- Comparing the chemistry of carbon and silicon. (a) Write balanced chemical equations for the reactions of H2O() with CH4 (forming CO2 and H2) and SiH4 (forming SiO2 and H2). (b) Using thermodynamic data, calculate the standard free energy change for the reactions in (a). Is either reaction product-favored at equilibrium? (c) Look up the electronegativities of carbon, silicon, and hydrogen. What conclusion can you draw concerning the polarity of CH and SiH bonds? (d) Carbon and silicon compounds with the formulas (CH3)2CO (acetone) and [(CH3)2SiO]n (a silicone polymer) also have quite different structures. Draw Lewis structures for these species. This difference, along with the difference between structures of CO2 and SiO2, suggests a general observation about silicon compounds. Based on that observation, do you expect that a silicon compound with a structure similar to ethene (C2H4) exists?arrow_forwardThe space shuttle Orbiter utilizes the oxidation of methylhydrazine by dinitrogen tetroxide for propulsion: 4N2H3CH3(l)+5N2O4(l)12H2O(g)+9N2(g)+4CO2(g) Calculate H for this reactionarrow_forwardAn aqueous solution of an unknown salt of vanadium is electrolyzed by a current of 2.50 amps for 1.90 hours. The electroplating is carried out with an efficiency of 95.0%, resulting in a deposit of 2.850 g of vanadium. a How many faradays are required to deposit the vanadium? b What is the charge on the vanadium ions (based on your calculations)?arrow_forward
- Discuss the groups of chemical elements that are the most active. give examples or explanation.arrow_forwardWhy is carbon chemistry clearly complex?arrow_forwardExplain why different products are obtained in the electrolysis of molten ZnCl2 and in the electrolysis of an aqueous solution of ZnCl.arrow_forward
- Chemistry Mitigation measures to address climate change is a focus of many research groups. Explain why transition metal complexes are attractive materials for use as photocatalysts, as we devise new approaches to generate hydrogen or to convert CO2 into a useful product. Give examples of transition metal catalysts that can be used for both renewable hydrogen and CO2 conversion.arrow_forwardHow does 14Si have the same valence of 126C ?arrow_forwardHow can pure Mg be obtained from MgCl2? inorganic chemistryarrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning