LATIHAN UKOM 3

LATIHAN UKOM 3

University

15 Qs

quiz-placeholder

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LATIHAN UKOM 3

LATIHAN UKOM 3

Assessment

Quiz

Chemistry

University

Practice Problem

Medium

Created by

insani maharani

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Media Image

Berikut adalah logo obat tradisional yaitu

Obat Herbal Terstandar

Fitofarmaka

Jamu

Herbal

2.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

seorang analis akan menentukan kadar zat aktif obat secara alkalimetri dengan larutan baku NaOH pro analis dalam bentuk padat. Massa atom relatif NaOH adalah 40. Berapa gram NaOH yang harus ditimbang?

4 gram

3 gram

1 gram

2 gram

Answer explanation

=40gram x 0,1 mol x 0,5 L= 2 gram

mol L

kenapa 0,5 L?

karena 500 mL=500:1000=0,5 L

3.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Media Image

Logo apakah ituu?

Jamu

OHT

Fitofarmaka

simplisia

4.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

Seorang analis diminta untuk menentukan bobot jenis sirup dengan piknometer. dimana piknometer kosonh 17 gram, piknometer berisi air suling 23 gram, piknometer berisi sirup 25 gram. Berapa BJ sampel?

2,33

1,33

5,32

1,08

Answer explanation

BJ= bj zat

bj air

BJ= (25-17)

(23-17)

=1,33

5.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Media Image

Logo apa yaaa

Jamu

OHT

Fitofarmaka

jamu pegal linu

6.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

Dilakukan pemeriksaan kadar air simplisia dengan cara gravimetri. Daun kemangi ditimbang

kurang lebih 10,1004 g. Berat cawan kosong adalah 46.7891 g. Setelah dikeringkan di oven,

bobotnya menjadi 56,2982g. Berapakah hasil penetapannya (%)?

5,45

5,75

5,55

5,85

Answer explanation

Kadar air = (berat simplisia)- ((berat cawan+simplisia)-berat cawan) x 100%

Berat simplisia

= 10,1004 – 9,5091 x 100%

10,1004

= 5.85%

7.

MULTIPLE CHOICE QUESTION

10 sec • 7 pts

Pada identifikasi dengan KLT. Diketahui jarak noda 3 cm dan jarak elusi 8 cm. Berapakah Rf?

0,375

0,345

0,875

1,23

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