
penyangga
Authored by aprillia utami
Chemistry
University
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diantara campuran di bawah ini termasuk
larutan penyangga, kecuali ….
NH4OH dan NH4Cl
CH3COOH dan CH3COONa
Ca(OH)2 dan CaCl2
HCN dan KCN
H2CO3 dan KHCO3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diantara campuran di bawah ini yang tidak mengalami perubahan pH jika dilakukan penambahan air sampai 10 kali adalah ….
NaOH dan HCl
NaOH dan CH3COOH
NH4OH dan CaCl2
Ca(OH)2 dan CH3COOH
NH4OH dan CaCl2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Larutan yang memiliki sifat penyangga adalah ….
1
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fungsi sistem larutan penyangga dalam darah mempertahankan ….
derajat keasaman darah
kadar Hb darah
sel darah merah dari darah
fibrinogen darah
sel darah putih dari darah
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pada campuran asam lemah dan garamnya, pH sama dengan pKa jika ….
konsentrasi garam 1 M
konsentrasi asam = konsentrasi garam
konsentrasi asam = 1 M
pH + POH = 14
derajat ionisasi asam 0,1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu campuran NH4OH dan NH4Cl yang memiliki perbandingan mol 1 : 9. Jika Kb NH4OH = 1,8 x 10-5; maka pH campuran adalah ….
5 – log 2
6 – log 2
6 + log 2
8 – log 2
8 + log 2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui enam buah garam sebagai berikut :
1.CH3COONa
2.NH4Cl
3.(NH4)2SO4
4.CH3COONH4
5.NaCl
6.KF
Garam yang memiliki pH = 7 adalah ….
1 dan 3
2 dan 4
3 dan 5
4 dan 1
5 dan 4
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