0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is KB for cn- aq h2o l hcn aq oh-aq?
Kb=[HCn][OH-] [CN-]
What is KB for cn aq h2o l hcn aq oh aq?
Kb=[HCN][OH-]/[CN-]
What is the KB value for NAOH?
Kb = 55 It is a very strong base therefore it completely dissociates.
An acid has Ka equals 3.1 x 10-10 What is the Kb for the conjugate base of this acid at 25 C?
3.2 x 10-5
What is the relationship between a weak electrolyte and a weak acid or base?
The strength of an acid is expressed by its Ka value (acid 'equilibrium' constant) or its derivative pKa value ( pKa=-log10[Ka] )The relation with the strength of the conjugate base, (Kb , pKb values) is as follows:Ka * Kb = 1.0*10-14 at 25oCpKa + pKb = 14.00 at 25oC
What is the pka value for NaCN?
NaCN doesn't really have a pKa. In water it becomes Na^+ and CN^-. The CN^- is a base so it will have a Kb and pKb. If you want the pKa of the conjugate acid (HCN), you can find that from 1x10^-14/Kb.
What is KB for cn- aq h2o l hcn aq oh-aq?
Kb=[HCn][OH-] [CN-]
What is KB for cn aq h2o l hcn aq oh aq?
Kb=[HCN][OH-]/[CN-]
What Kb value represents the weakest base?
Kb = 3.8 10-10
What is the KB value for NAOH?
Kb = 55 It is a very strong base therefore it completely dissociates.
An acid has Ka equals 4.5 x 10- 7 What is the Kb for the conjugate base of this acid at 25 C?
2.2 x 10-8
An acid has Ka equals 3.1 x 10-10 What is the Kb for the conjugate base of this acid at 25 C?
3.2 x 10-5
What is the relationship between a weak electrolyte and a weak acid or base?
The strength of an acid is expressed by its Ka value (acid 'equilibrium' constant) or its derivative pKa value ( pKa=-log10[Ka] )The relation with the strength of the conjugate base, (Kb , pKb values) is as follows:Ka * Kb = 1.0*10-14 at 25oCpKa + pKb = 14.00 at 25oC
An acid has Ka 3.1 10 10 What is the Kb for the conjugate base of this acid at 25 C Kw 1.0 10 14 at 25 C?
3.2 x 10-5
An acid has Ka 2.5 10 4 What is the Kb for the conjugate base of this acid at 25 C Kw 1.0 10 14 at 25 C?
4.0 x 10-11
An acid has Ka equals 2.5 x 10-4 what is the Kb for the conjugate base of this acid at 25C Kw equals 1.0 x 10-14 at 25C?
4.0 x 10-11
How do the constants Ka and Kb relate to the relative strengths of a series of acids or bases?
The constants Ka and Kb relate to the relative strengths of series of acids or bases by being proportional. The higher the Ka or Kb value, the stronger the acid or base.
