Homework Answers
Ka is defined as the dissociation constant of an acid.
Strong acid dissociated to a large extent in aqueous solution. It means their ionization is high.
Acid strength is measured in terms of dissociation constant Ka. Larger the value of dissociation constant , more will be its ionization and stronger will be the acid.
Lesser the value of Ka weaker will be the acid.
In the given acids - HCN is the weakest acid
HCN - Ka = 6.3 × 10-10 which is least in the given acids
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em 12 Part A Which one of the following is the weakest acid? HF (Ka =...
7) Which one of the following is the weakest acid? A) HF (Ka = 6.8 ×...
7) Which one of the following is the weakest acid? A) HF (Ka = 6.8 × 10-4) B) HClO (Ka = 3.0 × 10-8) C) HNO2 (Ka = 4.5 × 10-4) D) HCN (Ka = 4.9 × 10-10) B) 5.7 x 10–2 M D) 2.9 x 10–3 M 22) Calculate the hydrogen ion concentration in a solution of iced tea with lemon having a pH of 2.87. A) 2.9x10–2M D) 2.9x10–3M B) 5.7 x 10–2 M E) 5.7 x 10–4...
Which of the following is the strongest acid? CH3COOH, Kg = 1.8 x 10-5 HF, KA...
Which of the following is the strongest acid? CH3COOH, Kg = 1.8 x 10-5 HF, KA = 3.4 x 10-4 O HNO2, Kg = 4.6 x 10-4 HCN, KA = 4.9 ~ 10-10 HCIO, KA = 3.0 x 10-8
Which of the following acids is the weakest? The acid is followed by its Ka value....
Which of the following acids is the weakest? The acid is followed by its Ka value. HCOOH, 6.5 x 10-5 HCIO2, 1.1 x 10-2 HNO2, 4.6 x 10-4 HIO, 2.3 * 10-11 HF, 3.5 x 10-4
Which of the following acids is the WEAKEST? The acid is followed by its Ka value....
Which of the following acids is the WEAKEST? The acid is followed by its Ka value. Which of the following acids is the WEAKEST? The acid is followed by its Ka value. HIO, 2.3 * 10^-11 HNO2, 4.6 × 10-4 HClO2, 1.1 × 10-2 C6H5COOH, 6.5 * 10 ^-5 HF, 3.5 × 10-4
QUESTION 12 Based on the acid dissociation constants (Ka) given, which of these acids is the...
QUESTION 12 Based on the acid dissociation constants (Ka) given, which of these acids is the weakest? о HNO2 (ka = 5.1 x 10-4) NH4+ (Ka = 6.3 x 10-10) HCO3- (Ka = 5.0 x 10-11) = CH3COOH (Ka 1.7 x 10-5) О H2PO4- (Ka = 6.3 x 10-8)
Consider the following unfinished table of weak acids with their corresponding pKa values and Ka values....
Consider the following unfinished table of weak acids with their corresponding pKa values and Ka values. Weak Acid pka 3.35 ка HNO2 HF HCN - 6.8*10-4 9.31 Arrange these three acids in order of increasing acid strength. (weakest) HCN <HF < HNO2 (strongest) n (weakest) HCN <HNO2 <HF (strongest) (weakest) HF <HNO2 <HCN (strongest) d (weakest) HNO2 <HCN <HF (strongest) Ce (weakest) HNO2 <HF <HCN (strongest)
5) Of the following acids, ________ is a strong acid. A) HNO2 B) H2CO3 C) HNO3...
5) Of the following acids, ________ is a strong acid. A) HNO2 B) H2CO3 C) HNO3 D) HClO 6) Calculate the hydrogen ion concentration in a solution of iced tea with lemon having a pH of 2.87. A) 2.9 x 10–2 M C) 1.3 x 10–3 M 7) Which one of the following is the weakest acid? A) HF (Ka = 6.8 × 10-4) B) HClO (Ka = 3.0 × 10-8) C) HNO2 (Ka = 4.5 × 10-4) D) HCN...
Given its acid dissociation constant (Ka) which of the following is the weakest acid? A-HClO2 (1.1...
Given its acid dissociation constant (Ka) which of the following is the weakest acid? A-HClO2 (1.1 × 10−2) B-HCOOH (1.8 × 10−4) C- HCN (4.9 × 10−10) D-HF (3.5 × 10−4)
Ka for nitrous acid, HNO2, is 4.50×10-4. Ka for hydrofluoric acid, HF, is 7.20×10-4. Ka for...
Ka for nitrous acid, HNO2, is 4.50×10-4. Ka for hydrofluoric acid, HF, is 7.20×10-4. Ka for hydrocyanic acid, HCN, is 4.00×10-10. What is the formula for the strongest conjugate base? ______?____
QUESTION 12 Based on the acid dissociation constants (K) given, which of these acids is the...
QUESTION 12 Based on the acid dissociation constants (K) given, which of these acids is the weakest? HCO3- (Ka = 5.0 x 10-11) CH3COOH (Kg = 1.7 x 10-5) HNO2 (Ka = 5.1 x 10-4) NH4+ (Ka = 6.3 x 10-10) H2PO4- (Ke = 6.3 x 10-8)
Which of the following is the strongest acid? CH3COOH, Kg = 1.8 x 10-5 HF, KA = 3.4 x 10-4 O HNO2, Kg = 4.6 x 10-4 HCN, KA = 4.9 ~ 10-10 HCIO, KA = 3.0 x 10-8
Which of the following acids is the weakest? The acid is followed by its Ka value. HCOOH, 6.5 x 10-5 HCIO2, 1.1 x 10-2 HNO2, 4.6 x 10-4 HIO, 2.3 * 10-11 HF, 3.5 x 10-4
QUESTION 12 Based on the acid dissociation constants (Ka) given, which of these acids is the weakest? о HNO2 (ka = 5.1 x 10-4) NH4+ (Ka = 6.3 x 10-10) HCO3- (Ka = 5.0 x 10-11) = CH3COOH (Ka 1.7 x 10-5) О H2PO4- (Ka = 6.3 x 10-8)
Consider the following unfinished table of weak acids with their corresponding pKa values and Ka values. Weak Acid pka 3.35 ка HNO2 HF HCN - 6.8*10-4 9.31 Arrange these three acids in order of increasing acid strength. (weakest) HCN <HF < HNO2 (strongest) n (weakest) HCN <HNO2 <HF (strongest) (weakest) HF <HNO2 <HCN (strongest) d (weakest) HNO2 <HCN <HF (strongest) Ce (weakest) HNO2 <HF <HCN (strongest)
QUESTION 12 Based on the acid dissociation constants (K) given, which of these acids is the weakest? HCO3- (Ka = 5.0 x 10-11) CH3COOH (Kg = 1.7 x 10-5) HNO2 (Ka = 5.1 x 10-4) NH4+ (Ka = 6.3 x 10-10) H2PO4- (Ke = 6.3 x 10-8)
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