Konsentrasi Larutan_Prasumatif
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Israyati Anwari
Used 1+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 15 pts
Di laboratorium, seorang siswa ingin membuat larutan dengan menggunakan 98 gram asam fosfat (Mr = 98) ditambahkan air sampai volume 500 mL. Tentukan konsentrasi asam fosfat dalam larutan !
0,001 M
0,002 M
0,01 M
0,02 M
0,1 M
2.
FILL IN THE BLANK QUESTION
2 mins • 15 pts
CH₃COOH atau asam asetat merupakan jenis senyawa yang sering ditemukan dalam kehidupan sehari-hari, seperti cuka. CH₃COOH juga dikenal dengan nama asam cuka. Jika seorang siswa ingin membuat suatu larutan yang mengandung 60 gram asam asetat (CH₃COOH) dalam 100 gram air, maka molalitas larutan tersebut adalah ..... molal (Massa molar CH₃COOH = 60 g/mol).
3.
MULTIPLE CHOICE QUESTION
2 mins • 15 pts
Sebanyak 58,5 gram NaCl dilarutkan dalam 250 gram air. Berapa molalitas larutan NaCl tersebut? (Diketahui: massa molar NaCl = 58,5 g/mol)
1,0
2,0
3,0
4,0
5,0
4.
MULTIPLE CHOICE QUESTION
2 mins • 15 pts
Sebanyak 4 gram urea (NH₂CONH₂) dilarutkan dalam 90gram air. Hitung fraksi mol urea dalam larutan tersebut. (Massa molar urea = 60 g/mol, massa molar H₂O = 18 g/mol)
0,07
0,014
0,57
0,14
0,7
5.
FILL IN THE BLANK QUESTION
1 min • 15 pts
Diketahui larutan yang mengandung 10 gram NaCl dalam 90 gram air. Hitung fraksi mol air dalam larutan tersebut. (Massa molar NaCl = 58,5 g/mol dan massa molar H₂O = 18 g/mol)
6.
FILL IN THE BLANK QUESTION
30 sec • 10 pts
Molalitas adalah banyaknya jumlah mol zat terlarut dalam ......... air
7.
FILL IN THE BLANK QUESTION
30 sec • 5 pts
Banyaknya jumlah mol zat terlarut yang dilarutkan dalam 1 liter larutan dikenal dengan satuan konsentrasi ....
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