What do you say about salt of both weak acid and weak base?
When weak acids and bases react, the relative strength of the conjugated acid-base pair in the salt determines the pH of its solutions. The salt, or its solution, so formed can be acidic, neutral or basic. A salt formed between a strong acid and a weak base is an acid salt, for example NH4Cl.
What is pH of a weak acid?
The value of pH for a weak acid is less than 7 and not neutral (7). Its pH value is less than that of strong acids.
What is the pH for weak acid?
The pH of a weak acid should be less than 7 (not neutral) and it’s usually less than the value for a strong acid. Note there are exceptions. For example, the pH of hydrochloric acid is 3.01 for a 1 mM solution, while the pH of hydrofluoric acid is also low, with a value of 3.27 for a 1 mM solution.
How do you find the pH of a weak acid and a weak base?
The procedure for calculating the pH of a solution of a weak base is similar to that of the weak acid in the sample problem. However, the variable x will represent the concentration of the hydroxide ion. The pH is found by taking the negative logarithm to get the pOH, followed by subtracting from 14 to get the pH.
Which of the following salt is are formed by weak acid?
Detailed Solution
| Salt | Type / Class of salt | Reaction of formation |
|---|---|---|
| Potassium nitrate KNO3 | Neutral salt | Formed by the reaction between strong base KOH and strong acid HNO3. KOH + HNO3 → KNO3 + +H2O |
| Potassium sulfate K2SO4 | Neutral salt | Formed by the reaction between strong base KOH and strong acid H2SO4. KOH + H2SO4 → K2SO4 + +H2O |
How do you find pH of weak acid?
Which is a weak acid?
Examples of weak acids include acetic acid (CH3COOH), which is found in vinegar, and oxalic acid (H2C2O4), which is found in some vegetables. VinegarsAll vinegars contain acetic acid, a common weak acid.
How do you find the pH of a weak acid?
How to calculate pH of salt of weak acid and strong base?
Here is how the pH Of Salt Of Weak Acid And Strong Base calculation can be explained with given input values -> 2 = (1+1+log10 (100))/2. What is pH Of Salt Of Weak Acid And Strong Base?
Is NH4 CN acidic or basic or neutral?
An aqueous solution of NH 4 CN contains NH 4+ ions and CN¯ ions (ignoring water and the other stuff). By itself in solution, NH 4+ ions are acidic (conjugate acid of the weak base NH 3 ). By itself in solution, CN¯ ions are basic (conjugate base of the weak acid HCN).
Which salts give alkaline solutions in water?
Such salts give alkaline solutions in water. Some of such salts are : CH 3 COONa, Na 2 CO 3 , K 2 CO 3 , KCN etc . For our discussion, we consider CH 3 COONa (sodium acetate) in water.