HIdrolisis part 2

Quiz
•
Chemistry
•
11th Grade
•
Hard
Siti Jainab
Used 9+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
pH 50 mL larutan (CH3COO)2 Ca 0,025 M dengan Ka CH3COOH = 2,0 × 10-5, adalah ….
5 - log 3
6 - log 5
8 + log 5
9 + log 5
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan (NH4)2SO4 0,4 M dimana Kb NH3 (aq) = 2,0 × 10-5, mempunyai pH larutan sebesar ….
5 - 3
5 - log 2
3 - log 5
2 - log 5
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
pH larutan yang terjadi bila 100 mL larutan NH3 0,2 molar (Kb = 1,0 × 10-5) direaksikan dengan 100 mL larutan HCl 0,2 molar adalah ….
1
6
8
13
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
pH 10 mL larutan HCOONH4 0,2 M, jika Ka HCOOH = 1,0 × 10-4 dan Kb NH4OH = 1,0 × 10-5 adalah ….
6,5
7
8,5
9,5
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
pOH larutan 100 mL CaX2 0,05 M, dengan Ka HX = 2,0 × 10-4 adalah ….
6
6 - log
8
8 - log
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
100 mL larutan CH3COOH 0,4 M dicampur dengan 100 mL larutan NaOH 0,4 M. Jika Ka CH3COOH = 2,0 × 10-7, maka pH larutan yang terjadi adalah ….
5
6
8
9
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dalam larutan terdapat NH4Cl 0,1 mol/liter yang mengalami hidrolisis menurut persamaan reaksi :
NH4+ + H2O --> NH4OH + H+. Jika tetapan hidrolisis sama dengan 10-9, maka pH larutan ….
5
6
8
9
8.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Banyaknya (NH4)2SO4 (Mr = 132) yang harus dimasukkan kedalam 100 mL larutan agar di peroleh pH = 5 adalah …. (Kb NH4OH = 2 × 10-5 )
1,32 gram
2,64 gram
13,20 gram
26,40 gram
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