Rank the following compounds in order of decreasing acid strength using periodic trends. Rank the acid strength from strongest to weakest. To rank items as equivalent, overlap them. ▸ View Available Hint(s) BH₁ HBr Greatest acid strength Submit HC H₂S The correct ranking cannot be determined. Reset Help Weakest acid strength
Rank the following compounds in order of decreasing acid strength using periodic trends. Rank the acid strength from strongest to weakest. To rank items as equivalent, overlap them. ▸ View Available Hint(s) BH₁ HBr Greatest acid strength Submit HC H₂S The correct ranking cannot be determined. Reset Help Weakest acid strength
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Transcribed Image Text:Acid Structure and Relative Acidity
The strength of an acid, HA, is often determined by the strength and polarity of the H-A
bond. In general, a weaker and more polar bond leads to a stronger acid.
For binary acids of elements in the same group of the periodic table, the H-A bond
strength decreases down the group, so acidity increases.
For binary acids of elements in the same row of the periodic table, the polarity of the H-A
bond increases from left to right (as the electronegativity of A increases), so acid strength
increases.
For oxoacids, acid strength increases with the oxidation number of the central atom. If the
oxidation number is the same, acid strength increases with the electronegativity of the
central atom.
Part A
Rank the following compounds in order decreasing acid strength using periodic trends.
Rank the acid strength from strongest to weakest. To rank items as equivalent, overlap them.
▸ View Available Hint(s)
BH₁ HBr HCI H₂S
Greatest acid strength
The correct ranking cannot be determined.
Submit
Reset Help
Weakest acid strength
Transcribed Image Text:Acid Structure and Relative Acidity
The strength of an acid, HA, is often determined by the strength and polarity of the H-A
bond. In general, a weaker and more polar bond leads to a stronger acid.
For binary acids of elements in the same group of the periodic table, the H-A bond
strength decreases down the group, so acidity increases.
For binary acids of elements in the same row of the periodic table, the polarity of the H-A
bond increases from left to right (as the electronegativity of A increases), so acid strength
increases.
For oxoacids, acid strength increases with the oxidation number of the central atom. If the
oxidation number is the same, acid strength increases with the electronegativity of the
central atom.
The correct ranking cannot be determined.
Submit
▼ Part B
Without consulting the table of acid-dissociation constants, match the following acids to the given Kal values.
Drag the appropriate items to their respective bins.
▸ View Available Hint(s)
Kal 1.7 x 10-7
Submit
H₂SO3 H₂SO4 H₂S
Kal = 1.7 x 10-2
Reset Help
K very large
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