F4 HG dan Buffer

F4 HG dan Buffer

11th Grade

20 Qs

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F4 HG dan Buffer

F4 HG dan Buffer

Assessment

Quiz

Chemistry

11th Grade

Practice Problem

Hard

Created by

kusmeri kusmeri

Used 2+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Larutan KCN dalam air akan bersifat basa, reaksi yang menunjukkan terjadinya sifat basa tersebut adalah…

K+ +  OH → KOH

CN+  H+  → HCN

K++ H2O → KOH +  H+

CN+  KOH  →   KCN  + OH

CN + H2O    → HCN + OH

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Diantara garam-garam berikut yang mengalami hidrolisis total dalam air adalah…

NH4Cl

NH4CN

KCN

CuSO4

MgSO4

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Garam yang mengalami hidrolisis sebagian dan bersifat asam adalah..

CH3COONa

HCOOK

NH4Cl

KCl

CH3COONH4

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Di antara campuran berikut ini, yang tidak dapat membentuk garam terhidrolisi adalah

100 ml CH3COOH 0,1 M + 100 ml NaOH

100 ml HF 0,1 M + 100 ml KOH 0,1 M

100 ml HCl 0,1 M + 100 ml NaOH 0,1 M

100 ml HCl 0,1 M + 100 ml NH4OH 0,1 M

100 ml HCOOH 0,1 M + 100 ml KOH 0,1 M

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Larutan garam yang mempunyai pH > 7 adalah…

KCl

NaCN

CuSO4

NH4Cl

K2SO4

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Perhatikan persamaan reaksi berikut!

  • (1) CH3COO + H2O ⇌ CH3COOH + OH

  • (2) CN + H2O ⇌ HCN + OH

  • (3) Al3+ + 3H2O ⇌ Al(OH)3 + 3H+

  • (4) NH4+ + H2O ⇌ NH4OH + H+

  • (5) S2− + 2H2O ⇌ H2S + 2OH

Pasangan reaksi hidrolisis untuk garam yang bersifat asam adalah ….

1 dan 2

1 dan 3

2 dan 3

3 dan 4

4 dan 5

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Jika Ka (CH3COOH) = 1 X 10-5 maka pH larutan CH3COONa 0,1 M adalah .

3

7

9

11

13

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