Consider the following solution mixture :

1. 50mL CH3COOH 0.2M and 50mL NaOH 0.1M
2. 50mL CH3COOH 0.2M and 100mL NaOH 0.1M
3. 50mL H2CO3 0.2M and 100mL NH3(aq) 0.1M
4. 50mL HCL 0.1M and 50mL NH3(aq) 0.2M

50mL HCL 0.1M and 50mL NaOH 0.2M. The solution mixture pH which will not change when added a small amount of strong basic solution or strong acid solution are :

A. 1 and 2
B. 1 and 3
C.1 and 4
D. 2 and 3
E. 1 and 5

Question

Consider the following solution mixture :

1. 50mL CH3COOH 0.2M and 50mL NaOH 0.1M
2. 50mL CH3COOH 0.2M and 100mL NaOH 0.1M
3. 50mL H2CO3 0.2M and 100mL NH3(aq) 0.1M
4. 50mL HCL 0.1M and 50mL NH3(aq) 0.2M

50mL HCL 0.1M and 50mL NaOH 0.2M. The solution mixture pH which will not change when added a small amount of strong basic solution or strong acid solution are :

A. 1 and 2
B. 1 and 3
C.1 and 4
D. 2 and 3
E. 1 and 5

anonymous · Answer

@xxAshxx  can you help me with this ?

anonymous · Answer

Sorry @HemarubenY ....idk

anonymous · Answer

$\ddot \smile $ sory..

anonymous · Answer

no probs @xxAshxx  :)

anonymous · Answer

@Abmon98  can you help me with this ?

anonymous · Answer

Can you identify any of the solutions that might contain a buffer? If so, such a system will keep the pH from rising or falling too much with the addition of a small amount of base or acid.  In the buffer system you will have a weak acid, or a weak base, and its conjugate.  Look carefully at the relative strengths of the acids and bases in each mixture.