Konsentrasi larutan yang dibuat dari 25 gr padatan CaCO3 dan dilarutkan dalam air hingga volume larutan menjadi 500 mL adalah...M. (Ar Ca = 40, C = 12, O = 16)
Quiz Laju Reaksi

Quiz
•
Chemistry
•
11th Grade
•
Hard
Reizky Juliadhi
Used 1+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
0.05 M
0.25 M
0.5 M
0.025 M
0.005 M
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Untuk membuat 500 mL larutan H2SO4 0.05 M dibutuhkan larutan H2SO4 5 M sebanyak...mL
5 mL
10 mL
2.5 mL
15 mL
5.5 mL
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Volume asam klorida 37% massa jenis 1.19 kg.L-1 yang dibutuhkan untuk membuat 120 mL larutan dengan konsentrasi 0.5 M adalah...mL (Ar H = 1, Cl = 35.5)
49.7
4.97
497
0.497
0.0497
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Massa kristal NaOH yang dibutuhkan untuk membuat 250 mL larutan 0.1 M adalah...gr (Mr Na = 23, O = 16, H = 1)
1.0
0.1
10
100
0.01
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Sebanyak 0.5 mol gas NO2 dipanaskan dalam ruangan dengan volume 5 liter sehingga membentuk dinitrogen pentaoksida menurut persamaan : 4NO2(g) + O2(g) -> 4N2O5(g) Dalam 20 detik pertama terbentuk 0.5 mol N2O5. Laju pengurangan NO2 adalah ...
5 x 10-2
5 x 10-4
5 x 10 3
5 x 10-3
5 x 10-1
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Sebanyak 500 mL larutan Ca(OH)2 0.1 M dicampur dengan larutan 250 mL Ca(OH)2 0.4 M. Konsentrasi campuran tersebut adalah...M
0.002
0.02
0.25
0.2
2
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Pada reaksi A + B -> C diperoleh persamaan laju reaksi v = k [A]2. Dari persamaan laju tersebut dapat disimpulkan bahwa.....kecuali
laju reaksi dipengaruhi oleh perubahan konsentrasi A.
orde reaksi atau tingkat reaksi konsentrasi B sama dengan nol.
laju reaksi tidak dipengaruhi oleh konsentrasi B.
laju reaksi hasil pereaksi C mempengaruhi laju reaktan B.
koefisien pereaksi A tidak sama dengan orde reaksi.
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