kelarutan dan ksp 2
Quiz
•
Science
•
12th Grade - University
•
Hard
erika febriana
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Apabila hasil kali kelarutan Pb(OH)2 = 4 x 10-15 maka kelarutan senyawa itu adalah
1.0 x 10-5 mol/L
2.0 x 10-5 mol/L
3.2 x 10-5 mol/L
4.0 x 10-8 mol/L
4.8 x 10-8 mol/L
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Larutan jenuh senyawa hidroksida M(OH)3 mempunyai pH = 9,0, harga Ksp senyawa ini adalah …
3,3 × 10–21
3,3 × 10–20
1,0 × 10–10
3,3 x 10-36
3,3 x 10-37
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
JIka Ksp Ag3PO4 = 2,16 x 10^-18, kelarutan Ag3PO4 dalam larutan Na3PO4 0,01 M adalah . . .
2,0 x 10^-6 M
2,7 x 10^-13 M
1,0 x 10^-14 M
2,0 x 10^-14 M
2,7 x 10^-17 M
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui : Ksp AgOH = 2 x 10^-8, AgCl = 3,8 x 10^-9
Dilakukan pencampuran beberapa larutan berikut :
1. 20 mL AgNO3 0,0002 M + 20mL NaOH 0,0002 M
2. 20 mL AgNO3 0,0001 M + 20 mL NaOH 0,0001 M
3. 20 mL AgNO3 0,0002 M + 20 mL NaCl 0,0002 M
4. 20 mL AgNO3 0,0001 M + 20 mL NaCl 0,0001 M
(Ar Ag = 108, O =16, Cl = 35,5 dan H = 1)
Berdasarkan keempat campuran tersebut akan terbentuk endapan . . . .
0,250 mg AgOH
0,287 mg AgCl
0,500 mg AgOH
0,574 mg AgCl
0,645 mg AgCl
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui Ksp beberapa garam kromat sebagai berikut.
Ksp CaCrO4 = 7,1 x 10^-4
Ksp BaCrO4 = 5,1 x 10^-9
Ksp SrCrO4 = 2,2 x 10^-5
Jika kedalam 25 mL larutan klorida dari alkali tanah yang mengandung ion Ca2+, Sr2+ dan Ba2+ dengan konsentrasi masing masing 0,02 M ditambahkan 25 mL larutan K2CrO4 akan dihasilkan endapan .. . . .(MrCaCrO4 = 156, BaCrO4 253 dan SrCrO4 = 204)
7,8 x 10^-2 gram CaCrO4
10,2 x 10^-2 gram SrCrO4
12,65 x 10^-3 gram BaCrO4
10,2 x 10^-3 gram SrCrO4
7,8 x 10^-3 gram CaCrO4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika pada suhu tertentu nilai Ksp Mg(OH)2 = 4 x 10^-12, pH larutan Mg9OH)2 saat jenuh adalah . . .
4 – log 0
4 – log 2
9 – log 2
10 + log 0
10 + log 2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berapa mol NaF yang harus dilarutkan ke dalam 1.0 liter larutan jenuh PbF2 pada 25 C agar konsentrasi ion Pb2+ dalam larutan menjadi 1x108 molar ? (Ksp PbF2 pada 25 C = 4.0 x 10-10)
0.02 mol
0.04 mol
0.10 mol
0.20 mol
0.40 mol
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