
Pre-Test Stoikiometri
Authored by Zulfa Hilmi Kautsar
Chemistry
9th - 12th Grade
Used 3+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mana dari besaran berikut yang setara dengan 1 mol?
1.01 x 1010 buah
2x1020 lusin
6.02 x 1023 butir
3.00 x 108 pasang
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika diketahui massa atom relatif (Ar) dari H=1, C=12, N=14, dan O=16, tentukan massa molekul relatif (Mr) dari senyawa C3H9NO!
60
75
90
42
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan massa dari 2 mol gas N2 jika diketahui Ar N=14 g/mol!
7 g
14 g
28 g
56 g
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan massa NaCl (Mr = 58.5 g/mol) yang perlu dilarutkan ke dalam 100 mL air untuk mendapatkan larutan NaCl dengan konsentrasi 0.1 M!
5.85 g
0.585 g
58.5 g
585 g
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu wadah berisikan 2 mol gas Helium (Ar=4 g/mol) bersuhu 27oC dengan tekanan 1 atm. Tentukan massa jenis dari gas di wadah tersebut!
8.00 g/L
0.16 g/L
49.2 g/L
0.08 g/L
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu campuran diketahui terdiri dari NaCl (Mr=58.5) dan KCl (74.5) dengan perbandingan mol 50:50. Tentukan massa total dari 1 mol campuran!
58.5 g
74.5 g
123 g
61.5 g
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan jumlah H2O yang dihasilkan apabila direaksikan 1 mol CH4 dan 1 mol O2! Diketahui reaksi: CH4 + 3O2 -> CO2 + 2H2O
1 mol
2 mol
0.33 mol
0.66 mol
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