
tugas tpk
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Easy
Muslichatus Sa'diyah
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Pasangan senyawa yang termasuk senyawa kovalen dan bersifat elektrolit adalah
H2SO4 dan HCl
KOH dan NaCl
H2SO4 dan HCl
KCL dan NH3
2.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Berapakah titik didih larutan urea yang terbentuk dari 2 gram urea CO(NH2)2 yang dilarutkan dalam 80 gram air jika diketahui Mr urea = 60, & kb air = 0,52 C/molal
100,175 C
101,179 C
102,197 C
100,195 C
3.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Larutan elektrolit kuat dapat membuat lampu pada alat uji elektrolit menyala karena
Terjadi aliran ion-ion
Terionisasi menjadi banyak ion
Terurai sebagian menjadi ion-ion
Terurai dengan gas
4.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Suatu larutan dibuat dengan melarutkan 30 gram urea (Mr = 60) hingga volume 1 liter. Berapakah konsentrasi larutan urea yang terbentuk?
0,9 M
0,2 M
0,5 M
0,3 M
5.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Unsur-unsur gas mulia bersifat stabil disebabkan oleh
Wujudnya berupa gas monoatom
Energi ionisasinya rendah
Jari-jari atomnya kecil
Elektron valensinya maksimal
6.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Diketahui data entalpi pembentukan standar sebagai berikut
CO2 = -394 kj/mol
H2O = -286 kj/mol
C2H5OH = -266 kj/mol
Entalpi pembakaran standar dari pembakaran etanol menurut reaksi adalah
-1380 kj/mol
-1480 kj/mol
-1245 kj/mol
-1358 kj/mol
7.
MULTIPLE CHOICE QUESTION
10 sec • 10 pts
Berikut yang merupakan larutan nonelektrolit adalah larutan
Asam
Garam
Cuka
Etanol
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