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KIMIA SMA (AsamBasa, Buffer,Hidrolisis)- The Excellent Study

Authored by Hoo Alfando

Chemistry

10th - 12th Grade

Used 7+ times

KIMIA SMA (AsamBasa, Buffer,Hidrolisis)- The Excellent Study
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan pHdari 200ml CH3COOH 0,1 M yang dicampur dengan100ml CH3COOK 0,2 M, jika Ka=10^-5

5
4
2-log 5
2
2+log5

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jika 400ml CH3COOH 0,1M dicampur dengan 400ml CH3COONa 0,1 M menghasilkan pH=5 , Berapa nilai Ka CH3COOH ?

2x10^-5
10^-5
3x10^-5
10^-2
2x10^-4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

200 ml CH3COOH 0,1 M bereaksi dengan 100ml NaOH 0,1 M. Jika nilai Ka=10^-5 , berapa pH larutan penyangga?

2-log 5
2+log 5
5
5-log 2
4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Campuran 100ml NH3 0,2 M dengan 50 ml HCl 0,1 M menghasilkan pH=5. Tentukan nilai Kb?

10^-5
10^-9
1/2 x 10^-9
1/3 x 10^-9
1/2 x 10^-5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Berapa gram ammonium sulfat (NH4)2SO4 harus ditambahkan ke dalam 500ml larutan NH3 0,02 M untuk membuat larutan penyangga dengan pH =8? Kb NH3= 2x10^-5 ; Ar N=14, H=1, S=32, O=16.

10,2 gram
11,2 gram
12,2 gram
13,2 gram
14,2 gram

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Untuk membuat larutan penyangga yang mempunyai pH=4, ke dalam 100 ml larutan CH3COOH 0,5M (Ka= 10^-5) harus ditambah larutan CH3COONa 0,05 M sebanyak …..

100ml
50ml
10ml
5ml
1ml

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jika 50ml larutan CH3COOH 0,1 M dicampurkan dengan 100ml CH3COONa 0,2 M (Ka CH3COOH = 1,8 x 10^-5), maka pH campuran adalah….

6-log 4,5
6-lo2,5
6
6+log 4,5
6+log 2,5

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