Pretest satuan konsentrasi
Authored by Zulfa Hilmi Kautsar
Others
9th - 12th Grade
Used 2+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu larutan diketahui dibuat dengan cara mencampurkan 5 g NaCl (Mr = 58.5) dan 100 g air (Mr=18). Tentukan persen mol NaCl di larutan tersebut!
0.5%
1%
1.5%
2%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu larutan diketahui dibuat dengan cara mencampurkan 5 g NaCl (Mr = 58.5) dan 500 mL air (Mr=18). Tentukan persen massa NaCl di larutan tersebut jika massa jenis larutan dianggap 1g/mL!
0.99%
9.9%
99%
0.099%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan konsentrasi molal (m) dari larutan yang mengandung 10% w/w NaCl (Mr=58.5)! Diketahui Mr air = 18
0.18 m
1.8 m
0.5 m
1 m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan fraksi mol NaCl dari larutan yang mengandung 10% w/w NaCl (Mr=58.5)! Diketahui Mr air = 18
0.03
0.17
0.34
0.1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan konsentrasi molar NaCl dari larutan yang mengandung 10% w/w NaCl (Mr=58.5)! Diketahui Mr air = 18, massa jenis larutan = 1 g/mL
0.17 M
1 M
0.1 M
1.7 M
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan konsentrasi molar NaCl dari larutan 0.1 molal NaCl (Mr=58.5)! Diketahui Mr air = 18, massa jenis larutan = 1.1 g/mL
0.100 M
0.109 M
1.100 M
0.099 M
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