
kel 3 dan 4
Quiz
•
Chemistry
•
1st - 3rd Grade
•
Practice Problem
•
Hard
Febi Fajarwati
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dalam analisis permanganometri yang berfungsi sebagai pembentuk endapan adalah
asam oksalat
asam sulfat
asam klorida
amoniak
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Satuan dalam penentuan massa sampel sulfat dalam air laut menggunakan metode gravimetri
mg/L
mg
presentase b/b
gram
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jenis indikator dan teknik yang dipakai dalam titrasi argentometri
metode molis
metode mohr
metode mohr, volhard, K Fajans dan Leibig
metode Leibig
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
komponen apa saja yang ada dalam metode potensiometri.
elektroda kerja
elektroda kerja pembanding
rangkaian jembatan garam
pengukur tegangan, elektroda kerja, elektroda pendamping, rangkaian jembatan garam
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tujuan percobaan penentuan kalsium dalam air sungai diantaranya, kecuali
standarisasi larutan EDTA
Menetapkan kadar CaCO3
menetapkan kadar Ca
menetapkan volume larutan EDTA
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apabila kita ingin mengencerkan larutan 1 N Natrium Tiosulfat menjadi 0,5 N dalam 50 ml. berapakah larutan Natrium Tiosulfat yang perlu di ambil
25 ml
15 ml
10 ml
10 marah2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada reaksi titrasi penentuan vit. C terjadi reaksi oksidasi dan reduksi. Manakah sebutkan senyawa yang berfungsi sebagai oksidator dan reduktor. (oksidator Iod, reduktor asam askorbat) Natrium Tiosulfat+asam askorbat, asam askorbat+asam asetat, asam askorbat+iod
Pada perobaan Vit. C terdapat tahapan apa saja dalam analisisnya (standarisasi Iod 0,
oksidator Iod dan reduktor asam askorbat
natrium tiosulfat dan asam askorbat
asam askorbat dan asam asetat
asam askorbat dan iodium
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