Solved buffer is NH3/NH4+, pKa of NH4+ = 9.26 | Chegg.com
buffer is NH3/NH4+, pKa of NH4+ = 9.26 pH=pKa+log([NH3]/[NH4+]) The buffer was created by mixing 10.3mL 1.0M NH4Cl with 7.825mL of 1.0M NaOH, resulting in 18.125mL of the buffer, with a pH of 9.76, where [NH3]=0.07825, [NH4+]=0.02475. Now the buffer is diluted with water to a volume of 50mL. Assume the pH of your diluted buffer is the same as the
Solved 5.The ammonium ion (NH4, pKa-9.25) has a lower pKa
Answer: Methylamine is stronger base compare to ammonia here. pKa of NH4+ is low compare to pKa of CH3NH3+ it mea. …
Solved Ammonium (NH4+) is a weak acid with a pKa of 9.26
Question: Ammonium (NH4+) is a weak acid with a pKa of 9.26. The dissociation is: NH+4 <--> NH3 + H+. Calculate the mass of ammonium added to 1 L of water in order to obtain a pH of 4 at equilibrium. (Answer = 327 g NH4+)
Solved What is the pH of a 0.006M solution of NH4+ (pKa ... - Chegg
What is the pH of a 0.006M solution of NH4+ (pKa = 9.24)? what is the [H+] of the solution? Your solution’s ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on.
Solved 2.42 The ammonium ion (NH4+, pka 9.25) has a lower
2.42 The ammonium ion (NH4+, pka 9.25) has a lower pKa than the methyl- ammonium ion (CH3NH3+, pKa = 10.66). Which is the stronger base, ammo- nia (NH3) or methylamine (CH3N
Solved The ammonium ion (NH4+) is an acid, because it can - Chegg
The ammonium ion (NH4+) is an acid, because it can release a proton to form the conjugate base ammonia (NH3). Ammonium ion (NH4+) has a pKa of 9.2. If I have dissolved 0.1 mmol ammonia in 1.0 L of water, and then adjusted the pH to 9.5, then the …
Solved 12. The pKa of NH4+ is 9.8 and the pka of H2O is 15.7
The pKa of NH4+ is 9.8 and the pka of H2O is 15.7 Would this reaction have more products or reactants at equilibrium? NH3 + H2O - NH4+ + OH A. Reactants B. Products C. Equal amounts D. Can't tell from this information
Solved Given the following: CH3CH2OH + NH3 -- CH3CH2O
Question: Given the following: CH3CH2OH + NH3 -- CH3CH2O- + NH4+ pka of Ethanol = 15.9. A) Calculate the Keq for the acid-base reaction. B) Explain different result between reactions of ammonia with acetic adis, and with ethanol.
Solved With a pKa = 9.2 for the NH4 + ⇄ NH3 - Chegg.com
With a pKa = 9.2 for the NH4 + ⇄ NH3 + H+ reaction, what is [NH4 +]/[NH3] at pH 7.2 Your solution’s ready to go! Our expert help has broken down your problem into an easy-to-learn solution you can count on.
Solved For each of the following compounds (shown in their - Chegg
For each of the following compounds (shown in their acidic forms) write the form that will predominate in a solution at pH=5.5 : a. CH3COOH(pKa=4.76)b. CH3CH2NH3+(pKa=11.0) c. H3O+(pKa=−1.7) d. HBr(pKa=−9) e. NH4+(pKa=9.4) f. HC≡N(pKa=9.1) g. HNO2(pKa=3.4) h. HNO3(pKa=−1.3)