
Penilaian Formatif-Ksp
Authored by Anggita Hayuwardini
Chemistry
11th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pada temperatur tertentu Ksp PbSO4 dan PbI2 berturut-turut adalah sebesar 1,6 x 10-8 dan 7,1 x 10-9. Pada temperatur tersebut, pernyataan di bawah ini yang tepat adalah ….
PbSO4 lebih mudah larut dibandingkan PbI2
Diperlukan lebih banyak SO42- daripada I- untuk mendapatkan Pb2+ dari dalam laruta
Kelarutan PbSO4 sama dengan kelarutan PbI2
Kelarutan PbSO4 lebih besar daripada kelarutan PbI2
Kelarutan PbI2 lebih besar daripada kelarutan PbSO4
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dalam 100 cm3 air dapat larut 1,16 miligram Mg(OH)2 (Mr = 58). Harga Ksp dari Mg(OH)2 adalah ....
16,0 x 10-12
3,2 x 10-11
8,0 x 10-10
4,0 x 10-10
8,0 x 10-12
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Berikut ini data beberapa garam beserta Ksp nya :
(1) Cu(OH)2, Ksp = 2,6 x 10-19
(2) Fe(OH)2, Ksp = 8,0 x 10-16
(3) Pb(OH)2, Ksp = 1,4 x 10-20, dan
(4) Mg(OH)2, Ksp = 1,8 x 10-11
Urutan kelarutan senyawa tersebut dari yang kecil ke besar adalah ….
(1), (2), (3), (4)
(2), (4), (1), (3)
(3), (1), (2), (4)
(3), (2), (4), (1)
(4), (2), (1), (3)
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui hasil kali kelarutan batuan CaCO3 yang terdapat dalam stalaktit dan stalagmit pada goa pada suhu tertentu adalah 4 x 10-8. Kelarutan (s) CaCO3 dalam air adalah ….
10-4
1,5 x 10-3
2 x 10-8
2 x 10-4
3 x 10-6
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Hasil kali kelarutan Ag2S = 3,2 x 10-14. Jika Mr Ag2S = 248. Banyaknya massa Ag2S yang dapat larut dalam 500 mL air sebanyak . . .
2,48 mg
24,8 mg
19,48 mg
31,0 mg
39,68 mg
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika konsentrasi Ca+2 dalam larutan jenuh CaF2 = 2 x 10-4 mol L-1, maka hasil kali kelarutan CaF2 adalah ….
8 x 10-8
3,2 x 10-11
1,6 x 10-11
2 x 10-12
4 x 10-12
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Senyawa PbCl2 memiliki Ksp 3,2 x 10-5 sehingga kelarutan PbCl2 adalah ….
1 x 10-2 mol L-1
2 x 10-2 mol L-1
4 x 10-3 mol L-1
8 x 10-3 mol L-1
1 x 10-6 mol L-1
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