Soal Pretest
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
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Used 1+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
v = k ⌈A⌉⌈B⌉
v = k ⌈A⌉
a. v = k ⌈B]
a. v = k ⌈A⌉2⌈B⌉
v = k ⌈A⌉⌈B⌉2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Di daerah perkotaan, jumlah gas emisi buangan semakin meningkat. Salah satu gas yang dihasilkan adalah NO2 dan CO.
1. Persamaan laju untuk reaksi tersebut adalah r= k[NO2][CO]
2. Reaksi akan menjadi 4 kali lebih cepat jika konsentrasi gas NO2 dan gas CO dinaikkan menjadi 2 kali lebih besar.
3. Tetapan laju (k) untuk reaksi tersebut adalah 1 mol–1.L.detik–1.
4. Hubungan konsentrasi dan laju reaksi untuk masing- masing pereaksi adalah (gambar pada kurva disamping)
Pernyataan yang benar adalah....
1 dan 2
2 dan 3
3 dan 4
1 dan 4
2 dan 4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Reaksi hidrolisis etil asetat:
CH3COOHC2H5 + H2O ⟶ CH3COOH + C2H5OH
Berorde nol terhadap H2O. Hal ini menunjukkan...
Laju awal
Reaksi akan berlangsung terus hingga air habis
Konsentrasi air tidak mempengaruhi laju reaksi
Reaksi dapat berlangsung tanpa air
Laju reaksi berbanding lurus dengan konsentrasi air
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dalam suatu eksperimen untuk menyelidiki laju reaksi:
X + Y -> Z, diperoleh data pada tabel.
Maka grafik orde reaksi untuk reaksi diatas adalah....
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
0,1
0,2
0,01
0,02
0,001
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