
Ujian Semester Kimia Kelas XI

Quiz
•
Chemistry
•
11th Grade
•
Hard
Serlina Rapang
Used 1+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Sebanyak 200 mL larutan H2SO4 2 M direaksikan dengan 8 gram Fe2O3 dengan reaksi sebagai berikut : Fe2O3(s) + H2SO4(aq) Fe2(SO4)3 (aq) + H2O (aq) Jika Ar Fe = 56, S = 32, H = 1, O = 16, maka pernyataan berikut yang tepat adalah … .
Fe2O3 habis bereaksi dan tersisa 0,25 mol H2SO4
Fe2O3 habis bereaksi dan tersisa 0,35 mol H2SO4
Fe2O3 habis bereaksi dan tersisa 0,30 mol H2SO4
H2SO4 habis bereaksi dan tersisa 0,25 mol Fe2O3
H2SO4 dan Fe2O3 keduanya habis bereaksi
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Ke dalam 100 mL karutan MgCl2 2 M ditambahkan 100 mL larutan NaOH 1 M hingga terjadi reaksi berikut : MgCl2(aq) + NaOH (aq) Mg(OH)2(s) + NaCl(aq) Massa endapang yang dihasilkan adalah … .( Ar H=1,O=16,Mg=24)
58 gram
29 gram
11,6 gram
5,8 gram
2,9 gram
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Bijih nikel yang mengandung nikel oksida (NiO) direduksi dengan gas karbon monoksida sesuai reaksi : NiO(s) + CO(g) Ni(s) + CO2(g) Jika rendamen hasil reaksi 80%, massa nikel yang dihasilkan dari reduksi 1 ton nikel oksida adalah … . (Ar Ni=58,5; O=16)
785 kg
990 kg
981 kg
628 kg
588 kg
4.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Aluminium bereaksi dengan asam klorida menghasilkan larutan aluminium klorida dan gas hidrogen. Al (s) + 4 HNO3 (aq) → Al(NO3)3 (aq) + NO (g) + 2 H2O (l) Jika 2 mol HNO3 bereaksi dengan aluminium, berapa mol gas NO yang dihasilkan adalah ....
8 mol
4 mol
2 mol
1 mol
0,5 mol
5.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Sebanyak 10 gram tembaga direaksikan dengan 20 gram belerang dengan reaksi: Cu(s) + S(s) → CuS(s) Yang termasuk pereaksi pembatas adalah…(Ar Cu = 63,5 dan S = 32)
Cu
S
CuS
Cu dan S
CuS dan Cu
6.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Jika dalam Laboratorium ditemukan botol bertuliskan CuSO4.6H2O, maka dalam 1 molekul CuSO4 terdapat molekul H2O sebanyak ...
3 molekul
4 molekul
5 molekul
6 molekul
7 molekul
7.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Perbandingan antara hasil aktual dan hasil teoritis, yang dikalikan dengan 100% disebut ...
persentase aktual
persentase teoritis
persentase hasil
persentase untung rugi
persentase rendemen reaksi
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