Use Table 1 to determine if the following equilibria will move left or right i. HF (aq) + NH3 (aq) = F¯ (aq) + NH4 + (aq) ii. HCO3¯ (aq) + SO4²- (aq) =CO3²- (aq) + HSO4 (aq)
Use Table 1 to determine if the following equilibria will move left or right i. HF (aq) + NH3 (aq) = F¯ (aq) + NH4 + (aq) ii. HCO3¯ (aq) + SO4²- (aq) =CO3²- (aq) + HSO4 (aq)
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter16: Acids And Bases
Section: Chapter Questions
Problem 15A
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Question
![Use Table 1 to determine if the following
equilibria will move left or right
i. HF (aq) + NH3 (aq) = F¯ (aq) + NH4 + (aq)
ii. HCO3¯ (aq) + SO4²- (aq) =CO3²- (aq) +
HSO4 (aq)
table 1. Relative strengths for some conjugate
acid-base pairs:
ACID
BASE
100%
ionized in
H₂O
Acid strength increases
Strong
Weak
HCI
CIT
H₂SO4
HSO4
HNO3
NO3
H3O+ (aq)
H₂O
HSO4
SO₂²-
H3PO4
H₂PO4
HF
F™
HC₂H30₂
C₂H₂O₂
H₂CO3
HCO3
HS
H₂S
H₂PO4 HPO4²-
NH4+
NH3
HCO3
HPO ²-
CO3²-
PO4³-
H₂O
OH™
OH
0²-
H₂
H™
CH4
CH3
Negligible
Base strength increases
Weak
Strong
100%
protonated
in H₂O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d2ce070-9780-419f-aa40-b6779dea03fe%2F46eca466-5e00-498c-933b-a1509326f82a%2Fls00v2_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Use Table 1 to determine if the following
equilibria will move left or right
i. HF (aq) + NH3 (aq) = F¯ (aq) + NH4 + (aq)
ii. HCO3¯ (aq) + SO4²- (aq) =CO3²- (aq) +
HSO4 (aq)
table 1. Relative strengths for some conjugate
acid-base pairs:
ACID
BASE
100%
ionized in
H₂O
Acid strength increases
Strong
Weak
HCI
CIT
H₂SO4
HSO4
HNO3
NO3
H3O+ (aq)
H₂O
HSO4
SO₂²-
H3PO4
H₂PO4
HF
F™
HC₂H30₂
C₂H₂O₂
H₂CO3
HCO3
HS
H₂S
H₂PO4 HPO4²-
NH4+
NH3
HCO3
HPO ²-
CO3²-
PO4³-
H₂O
OH™
OH
0²-
H₂
H™
CH4
CH3
Negligible
Base strength increases
Weak
Strong
100%
protonated
in H₂O
![b. How many grams of NH4Cl are needed to
make 0.75 Make an NH4Cl (aq) solution at pH
5.00? (Kb = 1.8 × 10-5 for NH3)
c. The osmotic pressure of a 0.100 M HA (aq)
solution at 25.0 °C is 2.57 atm. Calculate:
i. acid constant, Ka, to the monoprotic acid HA.
ii. the base constant, Kb, to the conjugate base
of HA.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d2ce070-9780-419f-aa40-b6779dea03fe%2F46eca466-5e00-498c-933b-a1509326f82a%2Fygu98q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:b. How many grams of NH4Cl are needed to
make 0.75 Make an NH4Cl (aq) solution at pH
5.00? (Kb = 1.8 × 10-5 for NH3)
c. The osmotic pressure of a 0.100 M HA (aq)
solution at 25.0 °C is 2.57 atm. Calculate:
i. acid constant, Ka, to the monoprotic acid HA.
ii. the base constant, Kb, to the conjugate base
of HA.
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