kenaikan titik didih dan penurunan titik beku
Quiz
•
Chemistry
•
12th Grade
•
Medium
Astri Ummi4f
Used 90+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
15 gram zat nonelektrolit dilarutkan dalam 100 gram air menghasilkan larutan dengan titik didih 101,30C. Massa molar zat tersebut adalah…(Kb air = 0,52).
30
40
60
120
180
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika diketahui tetapan penurunan titik beku molal air 1,86oC/m dan massa molekul relatif CO(NH2)2 = 60, maka titik beku larutan 30 gram CO(NH2)2 dalam 250 gram air adalah ….
+3,72oC
+2,72oC
-0.93oC
-1,72oC
-3,72oC
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dalam 500 gram air terlarut 15 gram urea (Mr=60). Jika Kf air = 1,86, titik beku larutan urea adalah ..
-0.465
-0,930
0.465
0.930
1.86
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika ke dalam 200 gram air dilarutkan 8 gram zat X non elektrolit, maka penurunan titik beku larutan adalah ...(kf = 1,86, Mr X = 40)
0,93
1,86
3,72
0,186
0,93
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Glikol (Mr = 62) digunakan sebagai antibeku dalam air pendingin radiator kendaraan bermotor daerah beriklim dingin. Supaya cairan pendingin tidak membeku pada –10 °C, maka ke dalam 1 liter air harus ditambahkan glikol setidaknya sebanyak ... (Kf air = 1,8 ; ) air = 1 kg/L
690 gram
344 gram
115 gram
86 gram
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dari grafik tersebut, yang menunjukkan Tf adalah .......
G - H
I - J
B - E
C - E
D - F
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Disajikan beberapa sifat koligatif larutan dalam kehidupan sehari-hari berikut.
- Penggunaan cairan tetes mata
- Penggunaan garam dapur untuk membunuh lintah
- Penggunaan garam dapur dalam pembuatan es putar
- Penggunaan garam dapur untuk mencairkan salju
- embuatan kolam apung
Penerapan sifat koligatif larutan yang berhubungan dengan penurunan titik beku larutan ditunjukkan oleh angka ….
1 dan 2
1 dan 5
2 dan 4
3 dan 4
4 dan 5
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