
Asam Basa III
Authored by Jenny Rosaria Sianturi
Chemistry
11th Grade
Used 3+ times

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15 questions
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1.
FILL IN THE BLANK QUESTION
3 mins • 3 pts
Suatu asam lemah HA 0,05 M mempunyai konsentrasi ion H+ sebesar 9,5 x 10-4 M. Berapakah harga Ka dari asam lemah tersebut ?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pernyataan dibawah ini yang tidak benar berkaitan dengan teori asam basa Arrhenius adalah…
Arrhenius mengatakan bahwa pembawa sifat asam dalam larutan adalah H+
Pelarutnya hanya terbatas pada air saja
Adanya ion OH- yang dilepaskan ketika senyawa terion di dalam air menunjukkan bahwa senyawa tersebut bersifat basa
Dapat menjelaskan sifat amfoter suatu senyawa
Dapat menjelaskan tentang valensi asam dan basa
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan reaksi dibawah ini
NH3 + H2O ⇔ NH4+ + OH-
Pada reaksi diatas spesi yang bersifat asam adalah…
NH3
H2O
NH4+
OH-
NH3 dan H2O
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berdasarkan reaksi H2CO3(aq) + H2O(aq) ⇔ H3O+(aq) +HCO3-, pernyataan di bawah ini yang benar adalah…
Reaksi diatas yang bertindak sebagai donor proton adalah H2O
H3O+ terbentuk ketika H2O memberikan protonnya ke H2CO3
H2O dan HCO3- merupakan pasangan asam basa konjugasi
H3O+ bersifat basa
HCO3- merupakan basa konjugasi dari beri H2CO3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
pesi dibawah ini yang dapat bersifat asam dan basa (amfoter) menurut bronsted lowry adalah…
NH3
CO2
O-2
H3O+
NH4+
6.
FILL IN THE BLANK QUESTION
3 mins • 3 pts
Sebanyak 0.49 gram H2SO4 dilarutkan dalam 1 liter aquades. Jika Ar H = 1, Ar S = 32 dan O = 16 maka pH larutan yang terbentuk adalah …
7.
FILL IN THE BLANK QUESTION
3 mins • 3 pts
arutan NH4OH 0.5 M terionisai sebanyak 20 %. Harga pH larutan tersebut adalah. . .
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