ULANGAN HARIAN SIFAT KOLIGATIF
Quiz
•
Chemistry
•
12th Grade
•
Hard
SITI JULAEHA
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9 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Glukosa (Mr=180) sebanyak 30 gram dilarutkan dalam 300 gram air (Mr=18) pada suhu 25 oC. Jika tekanan uap jenuh air pada suhu tesebut sebesar 23,76 mmHg, maka hitung penurunan tekanan uap larutan tersebut??
0,329 mmHg
0,239 mmHg
0,923 mmHg
0,293 mmHg
0,392 mmHg
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Putra mencampurkan 92 gram gliserol (Mr=92) ke dalam 36 gram air (Mr=18). Jika tekanan uap air pada suhu saat pencampuran sebesar 30 mmHg, hitung tekanan uap larutan tersebut?
0,2 mmHg
30 mmHg
0,3 mmHg
20 mmHg
40 mmHg
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Suatu larutan glukosa (Mr = 180) dalam 2 kg air (Kb = 0,52) ternyata mendidih pada suhu 100,64 oC. Hitunglah massa glukosa yang dilarutkan dalam air.
344 gram
200 gram
443 gram
400 gram
243 gram
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dimasukkan 9 g NaCl ke dalam 900 ml air. Massa jenis air = 1 g/mL dan Kf air = 1,86°C/molal. Tentukan titik beku larutan tersebut! Mr NaCl = 58,5
0,54
-0,26
0,26
0,64
-0,64
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 3,6 gram glukosa (Mr=180) dilarutkan dalam air sampai volume 400 ml. Hitung tekanan osmotic larutan glukosa pada suhu 27 oC ?? R=0,082
1,23 atm
2,31 atm
3,21 atm
1,32 atm
0,23 atm
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 4,1 gram Ba(OH)2 (Mr = 171, termasuk basa kuat dan larutan elektrolit sehingga nilai α=1) dilarutkan ke dalam air sampai volume menjadi 600 mL. Jika suhu larutannya 30 oC. Hitung tekanan osmotic larutan tersebut?
2,89 atm
2,68 atm
2,98 atm
3 atm
3,98 atm
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
18 gram glukosa (Mr=180) dilarutkan dalam 1000 gram air (Mr=18). Jika Kf air = 1,86 , penurunan titik beku larutan tersebut adalah
-0,186
0,186
-0,861
1,86
-1,86
8.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4 gram NaOH (Mr=40, n = 2, α=1) dilarutkan dalam 2000 gram air (Mr=18). Jika Kb = 0,52 maka Kenaikan titik didih larutan tersebut adalah
105,2
5,2
100,052
0,052
100,52
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pernyataan yang benar berdasarkan data tersebut, adalah……
larutan elektrolit yang berkonsentrasi sama memiliki titik beku yang sama
titik beku larutan dipengaruhi oleh jenis zat terlarut dan jenis pelarut
titik beku larutan elektrolit lebih tinggi daripada larutan non elektrolit
semakin besar konsentrasi zat, semakin tinggi titik beku larutan
pada konsentrasi yang sama, titik beku larutan elektrolit lebih rendah daripada larutan
non elektrolit
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