UH 1
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Medium
Nuraini Aini
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Menurut Arrhenius, asam adalah zat yang....
Molekulnya mengandung atom hidrogen
Dapat melepas ion H+ dalam air
Dapat mengikat ion H+ dalam air
Dapat bereaksi dengan ion H+
Dapat menghasilkan ion OH-
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika konsentrasi ion H+ sebesar 8 x 10^-5 , maka pH larutan tersebut adalah.... (Log 8 = 0,3)
3
5,3
4,1
3,7
4,6
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Asam kuat mempunyai sifat sebagai berikut, kecuali.....
Mempunyai nilai tetapan setimbang (Ka) yang besar
Merupakan konduktor yang baik
Mempunyai pH rendah
Mempunyai lebih dari satu atom H dalam molekulnya
Dapat melarutkan berbagai logam
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui larutan asam lemah CH3COOH 0.1 M, Ka=10^-5.
Maka nilai pH CH3COOH adalah.....
12
11
16
8
20
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Derajat keasaman dari larutan 100 ml H2SO4 0,02 M adalah . . . .
2 – log 4
2 + log 4
2 + log 2
12 + log 4
12
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan asam lemah NH4OH 0,1 M,dan Kb = 10-5 , nilai pH larutan tersebut adalah… . .
4
7
11
16
10
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan CH3COOH 0,01 M ,Harga Ka = 1,8 x 10-5, nilai kosentrasi ion H+ larutan tersebut adalah……
8 x 10-7
4,2 x 10-4
4,2 x 10-6
2,4 x 10-4
2,4 x 10-6
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