
SOAL LAJU REAKSI
Authored by Nuraini Tasya
Chemistry
University
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Sebanyak 22,2 gram CaCl2 dilarutkan ke dalam 4 liter air. Molaritas CaCl2 tersebut adalah …. (Ar Ca = 40, Ar Cl = 35,5)
0,05M
0,5 M
0,02 M
0,2 M
0,04 M
2.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Gas SO3 terurai sempurna menjadi SO2 dan O2 di dalam suatu bejana yang volumenya 8 liter. Reaksi penguraian tersebut berlangsung selama 16 menit. Jika mol awal SO3 64 mol, maka laju penguraian SO3nya adalah
0,2 M/menit
0,5 M/menit
0,01 M/menit
2 M/menit
5 M/menit
3.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Suatu zat mengalami penguraian dengan laju 0,4 M/menit. Jika reaksi tersebut berlangsung selama 5 menit, konsentrasi awal zat tersebut adalah
5M
0,5M
3M
2M
0,2M
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Laju reaksi rata-rata pada 20 detik pertama adalah
0,3 M/detik
0,02 M/detik
0,03 M/detik
0,04 M/detik
0,4 M/detik
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Jika laju reaksinya 0,018 M, nilai x adalah
1,32M
1,25M
1,39M
1,35M
1,28M
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
4 mol P2 dan 2 mol Q2 direaksikan ke dalam wadah 2 L dan mengikuti persamaan berikut.
2P2 + Q2 → 2P2Q
Jika persamaan laju reaksinya r = 0,1[P2][Q2], besarnya laju reaksi saat konsentrasi P2Q yang terbentuk adalah 0,8 mol adalah
0,08 M/detik
0,008 M/detik
0,006 M/detik
0,05 M/detik
0,04 M/detik
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Jika ke dalam 10 mL larutan asam sulfat (H2SO4) 2 M ditambahkan air sebanyak 90 mL, maka konsentrasi larutan asam sulfat sekarang adalah ….
0,002M
0,02M
0,2M
2M
20M
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