The acid dissociation constant Ka of alloxanic acid HC4H3N2O5 is ×2.2410−7. Calculate the pH of a 0.57M solution of alloxanic acid. Round your answer to 1 decimal place.
Answer
pH = 3.4
Explanation
Ionization equilibrium of alloxanic acid is
HC4H3N2O5(aq) + H2O(l) <-------> C4H3N2O5-(aq) + H2O(l)
Ka = [C43N2O5-] [ H3O+] / [HC4H3N2O5] = 2.24 ×10-7
Initial concentration
[HC4H3N25] = 0.57
[C4H3N2O5-] = 0
[H3O+] = 0
change in concentration
[HC4H3N2O5] = -x
[C4H3N2O5-] = + x
[H3O+] = +x
so,
x2/( 0.57 - x) = 2.24 ×10-7
x = 0.0003572
[H3O+] = 0.0003572M
pH = -log( 0.0003572M)
pH = 3.4
The acid dissociation constant Ka of alloxanic acid HC4H3N2O5 is ×2.2410−7. Calculate the pH of a...
1. The acid dissociation constant K, of alloxanic acid (HC4H3N203) is 2.24x10'. Calculate the pH of a 0.93 M solution of alloxanic acid. Round your answer to 1 decimal place.
The acid dissociation constant K of alloxanic acid (11C,H,N,O,) is 2.24x10 Calculate the pH of a 2.9 M solution of alloxanic acid. Round your answer to 1 decimal place. [pH = 0 x 0 ?
The acid dissociation constant K, of alloxanic acid (HC,H,N,Os) is 2.24 x 10”. Calculate the pH of a 1.3 M solution of alloxanic acid. Round your answer to 1 decimal place. pH = 0
The acid dissociation constant K, of alloxanic acid (HC H3N203) is 2.24 x 10^?. Calculate the pH of a 6.8 M solution of alloxanic acid. Round your answer to 1 decimal place. pH = 0
The acid dissociation constant Ka of boric acid H3BO3 is ×5.810−10. Calculate the pH of a 3.1M solution of boric acid. Round your answer to 1 decimal place.
The acid dissociation constant K, of carbonic acid (H2CO3) is 4.5x 10-7. Calculate the pH of a 4.2 M solution of carbonic acid. Round your answer to 1 decimal place. PH = 0 x 5 ?
The acid dissociation Ka of propionic acid C2H5CO2H is ×1.310−5. Calculate the pH of a ×1.810−4M aqueous solution of propionic acid. Round your answer to 2 decimal places. The acid dissociation K, of propionic acid (C2H3COH) is 1.3 x 10–. Calculate the pH of a 1.8 x 10 *Maqueous solution of propionic acid. Round your answer to 2 decimal places. xs ?
The acid dissociation constant K, of hypobromous acid (HBrO) is 2.3 * 10-9 Calculate the pH of a 2.7 M solution of hypobromous acid. Round your answer to 1 decimal place. pH = X 6 ?
The acid dissociation constant K of carbonic acid (H,CO,) is 4.5 x 10^?. Calculate the pH of a 1.4 M solution of carbonic acid. Round your answer to 1 decimal place. pH = 0 * 5 ?
The acid dissociation constant Ka of trichloroacetic acid CCl3COOH, is 2.2x10^-1 calculate the ph of 1.00 M aqueous solution of trichloroacetic acid.