chemistry sifat koligatif larutan
Quiz
•
Chemistry
•
KG - 12th Grade
•
Medium
Dini Jo
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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Fraksi mol larutan metanol CH3OH di dalam sebuah air yaitu 0,50. Maka konsentrasi metanol dalam larutan dinyatakan dalam persen berat metanol yaitu…. Ar C = 12, O = 16, H =1
63%
53%
64%
62%
60%
2.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Jika di dalam sebuah larutan yang telah dibuat dengan melarutkan sebanyak 4,5 gram glukosa (C6H12O6) dalam 100 gram air, maka kemolalan nya yaitu…. (Ar C = 12, H =1, O = 16)
0,3 molal
0,25 molal
0,4 molal
0,43 molal
0,5 molal
3.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Ada sebanyak 11,7 gram NaCl (Mr = 58,5) yang dilarutkan ke dalam 500 gram air. Maka titik didih larutan yaitu…. (Kb air = 0,52oC/m)
1000,54 C
65,78 C
100,42 C
50,89 C
98,9 C
4.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Pada suhu 27 C, glukosa C6H12O6 (Mr = 180) ada sebanyak 8,5 gram telah dilarutkan ke dalam air hingga volumenya sebesar 500 ml R= 0,082 L atm mol-1 K-1. Maka tekanan osmosis larutan yang terjadi mencapai….
2,3546 atm
2,3344 atm
2,3123 atm
2,3124 atm
2,3024 atm
5.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Sebuah tekanan uap murni pada temperatur 50 adalah 92.50 mmHg. Ketika di dalam air dimasukkan beberapa jumlah gula (sukrosa), akibatnya tekanan uapnya turun hingga menjadi 92.20 mmHg.
Maka penurunan tekanan uap yang terjadi mencapai ….
80 mmHg
30 mmHg
50 mmHg
20 mmHg
92 mmHg
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