menghadapi UTS XI IPA

Quiz
•
Chemistry
•
11th Grade
•
Medium
Kacuk Sudarmono
Used 9+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Menurut teori asam-basa Bronsted-Lowry, asam didefinisikan sebagai zat yang . . . .
Meningkatkan [H+] bila dimasukkan kedalam H2O
Menurunkan [H+] bila dimaasukkan kedalam H2O
Meningkatkan [OH–] bila dimasukkan kedalam H2O
Menerima 1 H+ dari pasangan reaksinya
Memberi 1 H+ dari pasangan reaksinya
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Menurut teori asam-basa Bronsted-Lowry, asam didefinisikan sebagai zat yang . . . .
Meningkatkan [H+] bila dimasukkan kedalam H2O
Menurunkan [H+] bila dimaasukkan kedalam H2O
Meningkatkan [OH–] bila dimasukkan kedalam H2O
Menerima 1 H+ dari pasangan reaksinya
Memberi 1 H+ dari pasangan reaksinya
3.
MULTIPLE CHOICE QUESTION
30 sec • 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
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapakah konsentrasi ion [OH–] dalam larutan jika konsentrasi H+ = 2 X 10-4 M (Diketahui Kw = 10-14)…….
5 X 10-10
5 X 10-18
0,2 X 10-10
0,2 X 10-8
2 X 10-10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan asam lemah NH4OH 0,1 M,dan Kb = 10-5 , nilai pH larutan tersebut adalah… . .
11
3
9
14
6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diantara zat-zat berikut yang memiliki keasaman paling kuat adalah….
HCN (Ka = 6,0 x 10-10)
CH3COOH (Ka = 1,8 x 10-5)
HCl (Ka = 1 x 106 )
NH3 (Ka = 10-33)
H2O (Ka = 1,8 x 10-16)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hitunglah pH larutan jika 17,1 gram Ba(OH)2 dilarutkan dalam air sehingga volume larutan menjadi 500 mL. (Ar Ba = 137; O = 16; H = 1)
13,60
16,30
8
9,70
11
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