Post-Test_Konsentrasi Larutan
Authored by ION WIJAYA
Chemistry
9th - 12th Grade
Used 2+ times
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5 questions
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1.
FILL IN THE BLANK QUESTION
15 mins • 20 pts
Massa masing-masing unsur Na dan Cl dalam 234 gram NaCl adalah . . .
Ar Na = 23 dan Cl = 35,5
2.
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15 mins • 20 pts
Sebanyak 3 kg sampel air sungai setelah diteliti mengandung 120 mg Hg. Kadar Hg dalam sampel sungai tersebut adalah ....
3.
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15 mins • 20 pts
Berapakah kemolalan larutan cuka yang mengandung 24% massa CH3COOH?
(Ar H = 1, C = 12, dan O = 16)
4.
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15 mins • 20 pts
Berapakah kemolaran pada 12 gram urea CO(NH2)2 dalam 2 liter larutan?
(Ar H = 1, C = 12, N =14, dan O =16)
5.
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15 mins • 20 pts
Tentukan fraksi mol Ca(OH)2 dalam larutan Ca(OH)2 19%?
(Ar H = 1, O = 16, dan Ca = 40)
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