
Kalium Hidroksida
Quiz
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Chemistry
•
University
•
Hard
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
These 3 are the kinds of gravimetry analyses that widely use
Evaporation directly, indirectly, precipitation
Evaporation, precipitation, electrolysis
Precipitation, electrolysis, combustion
Evaporation, precipitation, combustion
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Aku adalah senyawa yang penting dimana aku digunakan dalam uji kation golongan II. Aku adalah presipitator kation golongan II. Senyawa apakah aku?
H2S
HCL
H2SO4
HNO3
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Setiap golongan kation terdapat sebutannya masing-masing. Golongan II bisa disebut sebagai golongan?
Golongan sisa
Golongan ammonium sulfida
Golongan hidrogen sulfida
Golongan endapan klorida
4.
MULTIPLE CHOICE QUESTION
2 mins • 3 pts
Setarakan dan jumlah reaksi tersebut!
8 H+ + 4MnO4- + C2O4- → 4 Mn2+ + 2CO2+ + 4H2O
MnO4- + C2O4- → Mn2+ + 2 CO2+
18 H+ + MnO4- + C2O4- → Mn2+ + 2CO2+ + 9 H2O
36 H+ + 2MnO4- + 5C2O4- → 2Mn2+ + 10 CO2+ + 18H2O
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hasil yang diberikan oleh temannya sangat membantu Latifa akirnya Latifa melakukan titrasi dimana larutan dari sampel tadi(10 ml) dimasukan ke dalam labu ukur 250 ml dan dipaskan hingga volume 250ml lalu latifa mengambil sebanyak 5 ml.lalu Latifa melakukan titrasi dengan AgNO3(0.0096 N) dengan volume titrasi 10.5ml;11ml;10.7ml dan berapakah kadar yang didapatkan oleh latifa
3048 ppm
1219 ppm
6096 ppm
304.8 ppm
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hitunglah molaritas larutan 0,396 m glukosa (C6H12O6), Massa molar glukosa adalah 180,2 gram dan kerapatan larutannya adalah 1,16 g/ml
0,714
0,809
0,429
0,500
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