
prestest MPO
Authored by Icha nisa
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berapa gram NaOH 0,2 N (BM=40) yang harus ditimbang untuk dibuat sebanyak 100 ml?
1,25 gr
125 gr
0,125 gr
1250 gr
0,0125 gr
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pada plat klt terdapat noda curcumin terlihat pada jarak 2,25 cm dari garis dasar, jarak tempuh pelarut adalah 8 cm. Hitung Rf senyawa curcumin
0,38
0,28
0,48
0,18
0,58
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pada saat melakukan titrasi pada sampel asam asetil salisilat, apakah jenis titrasinya ?
titrasi permanganomteri
titrasi acidi-alkalimteri
titrasi argentometri
titrasi komplesometri
titrasi redoks
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
berapa gr yang dibutuhkan untuk membuat indikator PP 3 % sebanyak 25 ml?
75 mg
0,75 mg
0,075 mg
750 mg
0,0075 mg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sampel ekstrak parasetamol yang ditambahkan FeCl 3%, reaksi positif berubah warna menjadi ?
merah muda
merah hati
biru sampai keunguan
endapan putih
cincin kuning
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ekstraksi dilakukan proses maserasi tanaman mengkudu dengan berat simplisia sebanyak 200 gr dan hasil ekstrak yang didapatkan sebanyak 15 gr. berapakah % rendemen (%R) ?
75%
0,75%
750%
7,5%
0,075%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
eluen yang dibutuhkan n-heksan (3) : etil asetat (4) : ethanol 96% (3) dibuat dalam 75 ml. berapakah masing-masing selun yang harus disiapkan?
20 : 35 : 20
15 : 45 : 15
27,5 : 20 : 27,5
15 : 25 : 15
22,5 : 30 : 22,5
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