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

Quiz
•
Chemistry
•
3rd Grade
•
Hard
sectionqa 1234
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11 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
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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