PTS XII/1
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Rinel Bukhari
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30 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Untuk menurunkan titik beku 2,5 liter air (massa jenis 1 g/cm3) menjadi -0,74oC pada tekanan 1 atm (Kf = 1,86), diperlukan jumlah gula (Mr = 342) yang harus dilarutkan sebanyak....
170 gram
204 gram
340 gram
408 gram
510 gram
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
sebanyak 20 gram zat A non elektrolit dilarutkan dalam 250 gram air (Kf = 1,86) membeku pada suhu -2,48oC. maka massa atom relatif zat A adalah....
60
90
120
180
240
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Titik beku larutan dalam radiator mobil yang berisi cairan dengan perbandingan 88 gram etilen glikol (Mr+62) dan 160 gram air adalah....(Kf air+1,86oC/m)
0oC
-2,5oC
-10,5oC
-16,5oC
-20,5oC
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika 0,05 mol garam MA dilarutkan dalam 100 gram air maka akan terbentuk larutan yang membeku pada -1,62oC. Jika Kf air=1,8, maka derajat ionisasi garam MA adalah....
0,4
0,5
0,6
0,7
0,8
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Perhatikan diagram P – T dari fasa H2O di atas.
Yang merupakan perubahan titik didih adalah ...
E – B
I – J
L – K
C – F
G – A
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan yang isotonik dengan larutan NaCl 0,3 M adalah ...
Na2SO4 0,3 M
KNO3 0,2 M
Urea 0,1 M
glukosa 0,6 M
H2SO4 0,4 M
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Beberapa contoh penerapan sifat koligatif larutan dalam kehidupan:
1) desalinasi air laut menjadi air tawar
2) etilen glikol yang ditambahkan ke dalam cairan radiator
3) membuat cairan infus yang akan dimasukkan ke dalam tubuh manusia
4) garam dapur yang digunakan pada pembuatan es putar
5) pemberian garam pada lintah
Penerapan sifat koligatif penurunan titik beku larutan terdapat pada nomor …
1) dan 2)
2) dan 3)
2) dan 4)
3) dan 4)
4) dan 5)
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