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Pretest satuan konsentrasi

Authored by Zulfa Hilmi Kautsar

Others

9th - 12th Grade

Used 2+ times

Pretest satuan konsentrasi
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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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