
Ujikom 3 kelas XI
Authored by Ika Yudiswastika
Chemistry
11th Grade
Used 19+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 100 mL larutan Ca(OH)2 0,005 M mempunyai pH sebesar ....
3 - log 5
12
2
3 + log 5
11 + log 5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada suhu 50 oC suatu larutan HCl mempunyai pH 2 - log 5. Jika diketahui harga Kw pada suhu tersebut sebesar 5,47 x 10−14, konsentrasi ion OH− pada suhu tersebut sebesar ....
1,094 x 10−13
2,735 x 10−13
1,094 x 10−14
1,094 x 10−12
5,470 x 10−12
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui beberapa larutan basa sebagai berikut :
1) 100 mL larutan Ca(OH)2 0,02 M
2) 100 mL larutan NaOH 0,03 M
3) 100 mL larutan LiOH 0,01 M
4) 100 mL larutan KOH 0,05 M
5) 100 mL larutan CsOH 0,04 M
Larutan yang mempunyai pH paling rendah ditunjukkan oleh angka ....
1)
2)
3)
4)
5)
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Massa padatan NaOH yang harus dilarutkan dalam 200 mL air agar terbentuk larutan dengan pH=12 sebanyak ....
(Ar Na = 23 g mol−1 , O = 16 g mol−1 , dan H = 1 g mol−1 ,
0,8 gram
0,4 gram
0,2 gram
0,04 gram
0,08 gram
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
sebanyak 10 mL larutan basa kuat monovalen mempunyai pH sebesar 11 + log 4, jika larutan tersebut diencerkan hingga volumenya 200 mL, maka pH larutan tersebut setelah diencerkan sebesar ....
11 + log 2
10 + log 2
10 + log 3
8 + log 2
6 + log 4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 100 mL larutan HCl 0,01 M dimasukkan ke dalam gelas kimia yang berisi 100 mL larutan H2SO4 0,02 M. Harga pH campuran larutan tersebut adalah ....
12 + log 5
12 + log 2,5
12 - log 2,5
2 - log 5
2 - log 2,5
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sebanyak 5 gram cuplikan yang mengandung NaOH (Mr = 40 g mol−1) dilarutkan dalam air hingga volume 500 mL jika pH larutan tersebut 13 + log 2, kadar NaOH dalam cuplikan adalah ....
80 %
70 %
60 %
50 %
40 %
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