Which acid has the largest Ka : HClO2 (aq), HBrO2 (aq), or HIO2 (aq)?
A. HClO2 (aq)
B. HBrO2 (aq)
C. HIO2 (aq)
D. All three acids have the same Ka
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Consider the given acid ionization constants. Identify the strongest conjugate base. ( d )Acid KaHNO2 (aq) 4.6 ´ 10-4HCHO2 (aq) 1.8 ´ 10-4HClO (aq) 2.9 ´ 10-8HCN (aq) 4.9 ´ 10-10
A. NO2- (aq)
B. CHO2- (aq)
ClO- (aq)
D. CN- (aq)
Use the data below to find the equilibrium constant (Kc ) for the reaction: A (g) ® 2B (g) + C (g). A (g) ® 2X (g) + C (g) Kc = 1.55B (g) ® X (g) Kc = 25.2
A. 984
B. 26.8
C. 6.10 ´ 10-4
D. 2.44 ´ 10-3
Which term can correctly be applied to the reaction Zn(s) + 2HCl(aq) ® ZnCl2(aq) + H2(g)?
A. neutralization
B. decomposition
C. single replacement
D. double replacement
Consider two aqueous solutions of nitrous acid (HNO2). Solution A has a concentration of [HNO2] = 0.55 M and solution B has a concentration of [HNO2] = 1.25 M. Which statement about the two solutions is true?
A. Solution A has the higher percent ionization and the higher pH
B. Solution B has the higher percent ionization and the higher pH
C. Solution A has the higher percent ionization and solution B has the higher pH
D. Solution B has the higher percent ionization and solution A has the higher pH