Stoichio (Mole) Quiz

Quiz
•
Chemistry
•
10th Grade
•
Hard
Armida Alba
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Massa molekul relatif (Mr) suatu zat didefinisikan sebagai
perbandingan massa masing-masing atom penyusun molekul dengan massa 1 atom O-16
perbandingan massa masing-masing atom penyusun molekul dengan massa 1 atom C-12
perbandingan massa rata-rata 1 molekul zat atom dengan massa 1 atom O-16
perbandingan massa rata-rata 1 molekul zat atom dengan massa 1 atom C-12
perbandingan massa rata-rata 1 molekul zat atom dengan massa 1 atom C-13
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
S8 + 12 O2 → 8 SO3
Berapa banyak mol dari S8 yang dibutuhkan untuk bereaksi dengan 3 mol O2?
0.25
1
4
36
24
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
2H2 + O2 → 2H2O
Berapa banyak jumlah mol O2 yang dibutuhkan untuk membentuk 7 mol H2O?
1
2
3,5
14
7
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
4 Fe + 3 O2 → 2 Fe2O3
Berapa mol Fe yang dibutuhkan untuk bereaksi dengan 9,75 mol O2?
3
4
13
39
2
5.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Diketahui lima senyawa berikut.
1. CaCO3
2. AlPO3
3. Ca3(PO4)2
4. (NH4)2SO4
5. Fe2(SO4)3
Urutan Mr dari yang terkecil hingga terbesar dari kelima senyawa tersebut adalah .... (Ar Ca= 40, Al= 27, P=31, S= 32, dan Fe=56)
(1)-(2)-(3)-(4)-(5)
(1)-(2)-(4)-(3)-(5)
(1)-(2)-(5)-(3)-(4)
(2)-(3)-(1)-(4)-(5)
(5)-(4)-(3)-(2)-(1)
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Senyawa berikut yang mempunyai massa molekul relatif (Mr) terbesar adalah ...
(Ar C= 12, N= 14, O= 16, K= 39, Ca=40, S= 32, dan Fe= 56)
kalsium dioksida
dinitrogen trioksida
besi(II) oksida
karbon dioksida
belerang trioksida
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Berapa jumlah mol dari 13535 g PBr3 (Ar P= 31 g/mol, Br = 80 g/mol) ?
48,94 mol
94,94 mol
49,94 mol
111 mol
300,74 x 1023 mol
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