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26. Why do polar substances such as NaCI dissolve so readily in water? Water dissociates salts by separating the cations and anions B. New interactions are formed between the water polar ends (8- and &+) and the Nat and CF ions. C. Spheres of hydration form between the water molecules and the Na+ and Cl- ions. D. All of the above E. None of the above A.

26. Why do polar substances such as NaCI dissolve so readily in water? Water dissociates salts by separating the cations and anions B. New interactions are formed between the water polar ends (8- and &+) and the Nat and CF ions. C. Spheres of hydration form between the water molecules and the Na+ and Cl- ions. D. All of the above E. None of the above A.

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter11: Solutions And Colloids
Section: Chapter Questions
Problem 8E: Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration...
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34. Refer to the table below. Which statement is false regarding chemical bond strength in water with respect to their strength in vacuum? LENGTH AND STRENGTH OF SOME CHEMICAL BONDS Strength (kcal/mole) Bond type Length* (nm) in vacuum in water Covalent 0.10 90 90 Noncovalent: ionic bond 0.25 80 Noncovalent: hydrogen bond 0.17 4 *The bond lengths and strengths listed are approximate, because the exact values will depend on the atoms involved. Covalent bonds retain their strength regardless of the medium because their sharing electrons is independent of the medium. В. А. When not under vacuum, hydrogen bonds in water decrease by 75% of their strength because they are continuously broken and formed. C. lonic bonds decrease by 96% because the strength of the participating ions depends on their charge; in water, ions will be attracted to water, decreasing the attraction to each other. D. All of the above E. None of the above
Transcribed Image Text:34. Refer to the table below. Which statement is false regarding chemical bond strength in water with respect to their strength in vacuum? LENGTH AND STRENGTH OF SOME CHEMICAL BONDS Strength (kcal/mole) Bond type Length* (nm) in vacuum in water Covalent 0.10 90 90 Noncovalent: ionic bond 0.25 80 Noncovalent: hydrogen bond 0.17 4 *The bond lengths and strengths listed are approximate, because the exact values will depend on the atoms involved. Covalent bonds retain their strength regardless of the medium because their sharing electrons is independent of the medium. В. А. When not under vacuum, hydrogen bonds in water decrease by 75% of their strength because they are continuously broken and formed. C. lonic bonds decrease by 96% because the strength of the participating ions depends on their charge; in water, ions will be attracted to water, decreasing the attraction to each other. D. All of the above E. None of the above
26. Why do polar substances such as NaCI dissolve so readily in water? Water dissociates salts by separating the cations and anions B. New interactions are formed between the water polar ends (8- and &+) and the Na+ and CF ions. C. Spheres of hydration form between the water molecules and the Na+ and CH ions. D. A. All of the above E. None of the above
Transcribed Image Text:26. Why do polar substances such as NaCI dissolve so readily in water? Water dissociates salts by separating the cations and anions B. New interactions are formed between the water polar ends (8- and &+) and the Na+ and CF ions. C. Spheres of hydration form between the water molecules and the Na+ and CH ions. D. A. All of the above E. None of the above
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