Advertisements
Advertisements
प्रश्न
Which will make basic buffer?
विकल्प
50 mL of 0.1 M NaOH + 25 mL of 0.1 M CH3COOH
100 mL of 0.1 M CH3COOH + 100 mL of 0.1 M NH4OH
100 mL of 0.1 M HCI + 200 mL of 0.1 M NH4OH
100 mL of 0.1 M HCI + 100 mL of 0.1 M NaOH
Advertisements
उत्तर
100 mL of 0.1 M HCI + 200 mL of 0.1 M NH4OH
Explanation:
Basic buffer is the solution which has weak base and its salt
\[\ce{\underset{200 ml}{NH4OH} + \underset{100 ml}{HCl} -> \underset{Salt}{NH4Cl} + H2O + \underset{(100 ml weak base)}{NH4OH}}\]
APPEARS IN
संबंधित प्रश्न
When NH4 Cl and NH4OH are added to a solution containing both, Fe3+ and Ca2+ ions, which ion is precipitated first and why?
Cu is precipitated as CuS while Zn is not precipitated when H2S is passed through an acidic solution of Cu(NO3 )2 and Zn(NO3)2 respectively.
Answer the following in one sentence :
Classify the following buffers into different types :
CH3COOH + CH3COONa
Veronal is used as a/an ______.
____________ forms a basic buffer solution.
The dissociation constant of a weak acid is 1 × 10−3. In order to prepare a buffer solution with a pH = 4, the `(["Acid"])/(["Salt"])` ratio should be ____________.
The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salts is given by ____________.
Calculate pKa of HF if Ka= 7.2 x 10-4.
Explain buffer action of sodium acetate-acetic acid buffer.
A buffer solution is prepared by mixing 0.01 М HCN and 0.02 M sodium cyanide. If pKa for HCN is 5.20, what is the pH of solution?
