
OSN 10 KSP
Authored by WINDI SESTI
Chemistry
12th Grade
Used 1+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika hasil kali kelarutan (Ksp) Ag2SO4 = 3,2 × 10–5 mol/liter, maka kelarutannya dalam 1 liter air adalah .....
A. 2 × 10–5 mol
B. 2 × 10–3 mol
C. 2 × 10–2 mol
D. 1 × 10–2 mol
E. 4 × 10–2 mol
A
B
C
D
E
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui Ksp CaCO3 = 4,0 × 10–10 dan Mr CaCO3 = 100. Kelarutan garam CaCO3 dalam tiap 200 mL larutan adalah .....
A. 2 × 10–3 gram
B. 4 × 10–4 gram
C. 2 × 10–5 gram
D. 4 × 10–6 gram
E. 8 × 10–8 gram
A
B
C
D
E
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada suhu tertentu, 0,35 g BaF2 (Mr = 175) melarut dalam air murni membentuk 1 L larutan jenuh. Hasil kali kelarutan BaF2 pada suhu ini adalah .....
A. 1,7 × 10–2
B. 3,2 × 10–6
C. 3,2 × 10–8
D. 3,2 × 10–9
E. 4,0 × 10–9
A
B
C
D
E
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika konsentrasi Ca2+ dalam larutan jenuh CaF2 = 2 × 10–4 mol/L, maka hasil kali kelarutan CaF2 adalah .....
A. 8,0 × 10–8
B. 3,2 × 10–11
C. 1,6 × 10–11
D. 2,0 × 10–12
E. 4,0 × 10–12
A
B
C
D
E
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika kelarutan CaF2 dalam air sama dengan s mol/L, maka nilai Ksp garam ini adalah .....
A. ¼ s3
B. ½ s3
C. s3
D. 2s3
E. 4s3
A
B
C
D
E
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Larutan jenuh X(OH)2 mempunyai pH = 9, hasil kali kelarutan dari X(OH)2 adalah ... .
A 1 × 10–10
B. 5,0 × 10–11
C. 1 × 10–15
D. 5,0 × 10–16
E. 1 × 10–18
A
B
C
D
E
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kelarutan PbSO4 dalam air adalah 1 × 10–4 M pada suhu 30 °C. Bila dilarutkan dalam K2SO4 0,05 M, maka kelarutan PbSO4 menjadi .....
A. 1,0 × 10–8 M
B. 0,2 × 10–6 M
C. 0,4 × 10–6 M
D. 1,2 × 10–5 M
E. 1,4 × 10–4 M
A
B
C
D
E
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