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Question 10 (1 point) Which acid is the weakest? carbonic acid H$_2$CO$_3$ ($K_a$ = 4.3 \times 10$^{-7}$) acetic acid CH$_3$COOH ($K_a$ = 1.8 \times 10$^{-5}$) hydrogen sulfate ion HSO$_4^-$ ($K_a$ = 1.2 \times 10$^{-2}$) hydrocyanic acid HCN ($K_a$ = 4.9 \times 10$^{-10}$) ammonium ion NH$_4^+$ ($K_a$ = 5.6 \times 10$^{-10}$)

          Question 10 (1 point)
Which acid is the weakest?
carbonic acid H$_2$CO$_3$ ($K_a$ = 4.3 \times 10$^{-7}$)
acetic acid CH$_3$COOH ($K_a$ = 1.8 \times 10$^{-5}$)
hydrogen sulfate ion HSO$_4^-$ ($K_a$ = 1.2 \times 10$^{-2}$)
hydrocyanic acid HCN ($K_a$ = 4.9 \times 10$^{-10}$)
ammonium ion NH$_4^+$ ($K_a$ = 5.6 \times 10$^{-10}$)

Question 10 (1 point)
Which acid is the weakest?
carbonic acid H2CO3 (Ka = 4.3 ×10^-7)
acetic acid CH3COOH (Ka = 1.8 ×10^-5)
hydrogen sulfate ion HSO4^- (Ka = 1.2 ×10^-2)
hydrocyanic acid HCN (Ka = 4.9 ×10^-10)
ammonium ion NH4^+ (Ka = 5.6 ×10^-10)

Added by Joseph L.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

04/03/2023

Step 1

The weaker the acid, the smaller the equilibrium constant. Show more…

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Question 10 (1 point) Listen Which acid is the weakest? carbonic acid H2CO3 (Ka = 4.3 x 10-7) acetic acid CH3COOH (K = 1.8 x 10-5) ) hydrogen sulfate ion HS04- (K = 1.2 10-2) hydrocyanic acid HCN (K = 4.9 x 10-10) ammonium ion NH4* (Ka = 5.6 x 10-10)