
REMIDI STOIKIOMETRI
Authored by Teti Sudiyarti
Chemistry
10th Grade
Used 13+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Banyaknya mol O2 yang terdapat dalam suatu sampel gas O2 yang mengandung 3,01 x 1023 partikel adalah.... ( L = 6,02 x 10 23 )
0,125 mol
0,25 mol
0,5 mol
0,75 mol
1 mol
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Senyawa yang mengandung jumlah molekul paling banyak adalah....
10 gram C2H6 ( Mr = 30 )
11 gram CO2 ( Mr = 44 )
12 gram NO2 ( Mr = 46 )
17 gram Cl2 ( Mr = 71 )
20 gram C6H6 ( Mr = 78 )
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada Suhu 27oC dan tekanan 1 atm, 4,92 liter gas X2 massanya 5,6 gram. Massa atom relatif adalah.... ( tetapan gas ideal = 0,082 L atm / mol Kelvin )
56
28
14
7
5,6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Massa urea dari 0,5 mol urea CO(NH2)2 adalah....( Ar C = 12, Ar O = 16, Ar N = 14, Ar H = 1 )
30 gram
45 gram
60 gram
90 gram
120 gram
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jumlah atom besi di dalam sepotong besi yang massanya 11,2 gram adalah....( Ar Fe = 56 ) ( L = 6,02 x 10 23 )
6,02 x 1024 atom
6,02 x 1022 atom
3,01 x 1022 atom
3,01 x 1023 atom
1,204 x 1023 atom
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Massa molar CO2 adalah 44 gram/mol , maka massa dari 3,01 x 10 24 molekul CO2 adalah....
220 gram
140 gram
41,6 gram
14 gram
2,8 gram
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila diukur pada keadaan standar ( 0oC , 1 atm ) volume dari 40 gram gas SO3 adalah.... ( Ar S = 32, Ar O = 16 )
5,6 liter
11,2 liter
2,24 liter
1,12 liter
0,56 liter
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