How many of the following may act as buffer ? (a) 20mL 0.2 M -H_(2)CO_(3) solution +10 ml 0.2 M-NaOH solution (b) 20 ml 0.2 M -H_(2)CO_(3) solution +20 ml 0.2 M-NaOH solution (c) 20 mL 0.2 M-H_(2)CO_(3) solution +30 mL 0.2 M-NaOH solution (d) 20 mL 0.2 M - H_(2)CO_(3) solution +10 mL 0.2 M-NaHCO_(3) solution (e) 20 mL 0.2 M -H_(2)CO_(3) solution +10 mL 0.2 M-Na_(2)CO_(3) solution (f) 20 mL 0.2 M -H_(2)CO_(3) solution +20 mL 0.2 M -Na_(2)CO_(3) solution (g) 20 mL 0.2 M -H_(2)CO_(3) solution +30 ml 0.2 M-Na_(2)CO_(3) solution

How many of the following may act as buffer ? (a) 20mL 0.2 M -H_(2)CO_

1.	How many of the following may act as buffer ? (a) 20mL 0.2 M -H_(2)CO_(3) solution +10 ml 0.2 M-NaOH solution (b) 20 ml 0.2 M -H_(2)CO_(3) solution +20 ml 0.2 M-NaOH solution (c) 20 mL 0.2 M-H_(2)CO_(3) solution +30 mL 0.2 M-NaOH solution (d) 20 mL 0.2 M - H_(2)CO_(3) solution +10 mL 0.2 M-NaHCO_(3) solution (e) 20 mL 0.2 M -H_(2)CO_(3) solution +10 mL 0.2 M-Na_(2)CO_(3) solution (f) 20 mL 0.2 M -H_(2)CO_(3) solution +20 mL 0.2 M -Na_(2)CO_(3) solution (g) 20 mL 0.2 M -H_(2)CO_(3) solution +30 ml 0.2 M-Na_(2)CO_(3) solution
Answer» ANSWER :5