Kimia dasar

Kimia dasar

3rd Grade

11 Qs

quiz-placeholder

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Kimia dasar

Kimia dasar

Assessment

Quiz

Chemistry

3rd Grade

Practice Problem

Hard

Created by

sectionqa 1234

Used 10+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Berapa gram NaCl yang digunakan untuk membuat larutan NaCl 0.02 M menggunakan labutakar 250 ml? (Mr NaCl = 58.5 gram/mol)

0.2925 gram

2.925 gram

29.25 gram

0.02925 gram

2.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Berapa ml H2SO4 dengan konsentrasi 98% yang harus digunakan untuk membuatn H2SO4 0.02 N menggunakan labu takar 500 ml? (densitas H2SO4 98%= 1.83 gr/cm3 , Mr H2SO4 = 98 gram/mol)

0.0273 ml

0.00273 ml

2.73 ml

0.273 ml

3.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Berapa mL HCL 33% yang di gunakan untuk membuat HCl 6,34% menggunakan labu takar 500 ml? (Density HCl 32% = 1.16 gr/cm3, Mr HCl = 36.5 gr/mol)

96 ml

9.6 ml

0,96 ml

9 ml

4.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Berapa mL asam phospat dengan konsentrasi 87% yang digunakan untuk membuat asam phospat 300 ppm sebanyak 10 L?

0.0034 mL

0.034 mL

0.34 mL

3.4 ml

5.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Berapa gram pure sucrose yang harus di timbang untuk membuat larutan sucrose 5000 ppm, 1000 ppm, 500 ppm dan 50 ppm? Labu takar yang digunakan 500 ml

5 gram, 1 gram, 0.5 gram, 0.05 gram

5000 gram, 1000 gram, 50 gram, 50 gram

2.5 gram, 0.5 gram, 0.25 gram, 0.025 gram

25 gram, 5 gram, 2.5 gram, 0.25 gram

6.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Jika ingin membuat larutan 5 ppm dengan volume 50 ml, menggunakan larutan sucrose 1000 ppm?

0.25 ml

0.025 ml

2.5 ml

25 ml

7.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Untuk membuat 10 % larutan lead II acetat sebanyak 2 L berapa gram Lead II Acetat yang harus di timbang?

200 gram

20 gram

2 gram

0.2 gram

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