Web30 jan. 2024 · If you know either pH or pKa, you can solve for the other value using an approximation called the Henderson-Hasselbalch equation: pH = pKa + log ( [conjugate base]/ [weak acid]) pH = pka+log ( [A - ]/ … WebpKa + pKb = -log ( [H3O+] {Base] / [Acid] ) + -log ( [OH-] [Acid] / [Base] ) = -log ( [H3O+] {Base] / [Acid] ) x ( [OH-] [Acid] / [Base] ) = -log ( [H3O+] [OH-] ) = 14 So: pH x pOH = pKa x pKb This is why the conversions between pH and pOH are so similar to conversions between pKa and pKb. ( 41 votes) Upvote Flag Show more... Oshien 8 years ago

acid base - pH of ammonium acetate solution - Chemistry Stack …

Web8 apr. 2013 · 1 Answer Sorted by: 7 For (a), the Henderson-Hasselbalch equation, p H = p K a + log ( [ A X −] / [ H A]), comes in handy. Because your molarities and volumes of the acid and its conjugate base are equal, this indeed reduces to simply p H = − log ( 6.3 ⋅ 10 − 5). WebHCl pKa=-10 c=0.1 Case 2. Solution is formed by mixing known volumes of solutions with known concentrations. For each compound enter compound name (optional), concentration, volume and Ka/Kb or pKa/pKb values. For example: CH3COOH pKa=4.76 c=0.1 v=10 HCl pKa=-10 c=0.1 v=20 For strong acids enter pKa=-1 For strong bases enter pKb=-1: … how do you anneal copper

If 50ml 0.1M NaOH solution is added to 20 ml 0.25M CH3COOH …

WebpH = pKa + log([A]/[HA]) The pKa to pH calculator use this formula to get the solution: pH = 4.75 + log10 (0.1) pH = 4.75 + (−1) pKa= 3.75. How to use the pKa to pH Calculator? … WebThe acetic acid has a pK a of about 4.8. It may therefore be used for making buffer solutions with pH values lying roughly between the range 3.8 to 5.8. Relation between pK a and pK b Let us consider a weak acid HA which ionises in the aqueous solution as: HA + H 2 O ⇋ H 3 O + (aq) + A – (aq) (acid) (conjugate base) Web8 okt. 2024 · If the pKa of acetic acid and pKb of NH4OH are 4.76 and 4.75 respectively, what will be the pH of ammonium acetate solution. asked Apr 29, 2024 in Chemistry by … ph wert platy