WebUsing the following Ka values, calculate the pH values for each of these solutions (using 2 significant figures). [Ka for acetic acid = 1.78x105; Ka for phosphoric acid = 7.52x10 3:Ka for H2CO3 = 4.3x107] Yes! This is correct. A. A solution of 0.3 M acetic acid has a pH of 2.7 Yes! This is correct. B. Web( H X 2 C O X 3: K a 1 = 4 × 10 − 7, K a 2 = 4.7 × 10 − 11) Solution N a X 2 C O X 3 2 N a X + + C O X 3 X 2 − I suppose nothing that can contribute to the p H of a solution happens to N a X + ions and we proceed with C O X 3 X 2 − which has a concentration of 0.05 M C O X 3 X 2 − + H X 2 O ↽ − − ⇀ H C O X 3 X − + O H X −
A buffer consists of 0.16 M KHCO3 and 0.39 M K2CO3
WebMay 25, 2024 · K a = [A - ] [H 3 O +] / [HA] [H 2 O] where the square brackets indicate concentration. Unless an acid is extremely concentrated, the equation is simplified by holding the concentration of water as a constant: HA ⇆ A - + H + K a = [A - ] [H + ]/ [HA] The acid dissociation constant is also known as the acidity constant or acid-ionization … WebApr 8, 2013 · Ka = [H+] [HCO3-]/ [H2CO3] This answer is: 👎 Add your answer: Earn + 20 pts Q: What is Ka for H2CO3 aq H aq HCO3 aq? Write your answer... Submit Still have questions? Find more answers Ask... how tall is jojo siwa
How to find out the pKa value of H₂CO₃ - Quora
WebMar 7, 2024 · Diprotic Acids. Diprotic acids contain two ionizable hydrogen atoms per molecule; ionization of such acids occurs in two steps. The first ionization always takes … WebSep 22, 2024 · The equations are as follows: H2O + CO2<=>H2CO3<=>H+ and HCO3-<=>another H+ and CO3 with a charge of -2. All the reactions in this series are two-way, … WebFor Acetic Acid CH3COOH pKa=4.75 So, if you want to find Ka, then you can simply do this. Remember that the letter "p" stands for "potential of" and it represents the negative … message blocking is active reddit