ULANGAN HARIAN ASAM DAN BASA
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Medium
SITI JULAEHA
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Menurut teori asam-basa Bronsted-Lowry, asam didefinisikan sebagai zat yang . . . .
Menerima 1 H+ dari pasangan reaksinya
Memberi 1 H+ dari pasangan reaksinya
Menurunkan [H+] bila dimaasukkan kedalam H2O
Meningkatkan [H+] bila dimasukkan kedalam H2O
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Untuk mengukur derajat keasaman asam atau basa yang akurat, paling tepat menggunakan. . . .
PH mater
Brom timol biru
Metil orange
metil merah
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan yang mempunyai pH lebih besar dari 7 adalah . . . .
Amoniak
gula
asam cuka
asam sulfat
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
PH dari larutan 100 ml H2SO4 0,02 M adalah . . . .
2 – log 4
4 - log 2
3 - log 4
2 - log 3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan asam lemah NH4OH 0,1 M,dan Kb = 10-5 , nilai pH larutan tersebut adalah… . .
11
9
8
5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diantara zat-zat berikut yang memiliki keasaman paling kuat adalah….
HCl (Ka = 1 x 106 )
CH3COOH (Ka = 1,8 x 10-5)
H2O (Ka = 1,8 x 10-16)
HCN (Ka = 6,0 x 10-10)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Menurut konsep asam-basa Bronsted-Lowry dalam reaksi NH3 + H2O → NH4+ + OH– Dapat ditarik kesimpulan…..
NH3 dan NH4+ adalah pasangan asam basa konjugasi
Air adalah asam karena dapat menerima sebuah proton
Amonia dan air adalah pasangan asam-basa konjugat
NH4+ dan OH– adalah basa kuat
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