Perbaikan Kimia Kelas XI Semester 2
Quiz
•
Chemistry
•
11th Grade
•
Hard
Dwi Handayani
Used 132+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Kertas lakmus biru akan berubah menjadi merah, bila dimasukkan ke dalam larutan…
Kalium hidroksida
Asam klorida
Natrium klorida
Barium sulfat
Natrium nitrat
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Reaksi yang tidak menghasilkan gas adalah . . . .
Logam magnesium dengan asam klorida encer
Natrium karbonat padat dengan asam sulfat encer
Logam besi dengan asam sulfat encer
Amonium klorida dengan natrium hidroksida
Logam tembaga dengan asam klorida encer
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapakah konsentrasi ion [OH–] dalam larutan jika konsentrasi H+ = 2 X 10-4 M (Diketahui Kw= 10-14)…….
5 X 10-10
5 X 10-18
0,2 X 10-10
0,2 X 10-8
2 X 10-10
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan CH3COOH 0,01 M,Harga Ka = 1,8 x 10-5,nilai kosentrasi ion H+ larutan tersebut adalah……
8 x 10-7
4,2 x 10-4
4,2 x 10-6
2,4 x 10-4
2,4 x 10-6
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hitunglah pH larutan jika 17,1 gram Ba(OH)2 dilarutkan dalam air sehingga volume larutan menjadi 500 mL.(Ar Ba = 137; O = 16; H = 1)
13,60
16,30
8
9,70
11
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan penyangga dibuat dengan mencampurkan larutan NH3 dengan NH4Cl dengan perbandingan mol 1 : 9. Jika Kb = 1,8 x 10-5, pH campuran tersebut adalah…
6 – log 2
9 + log 2
8 + log 2
8 – log 2
6 + log 2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Larutan penyangga dengan pH 8,5 dibuat dengan mengalirkan gas NH3 ke dalam 250 ml NH4Cl 0,05 M. Jika Kb NH3 = 10-5, volume NH3 yang dialirkan (diukur pada STP) sebanyak…ml.
28,5
42,0
56,5
70,0
88,5
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