
A_PH-2
Authored by Larosa Arupa
Chemistry
11th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika diketahui Ar N = 14, H = 1, S = 32, dan O = 16, maka Mr (NH4)2SO4 adalah ....
152
142
132
122
112
2.
MULTIPLE SELECT QUESTION
5 mins • 2 pts
Pada reaksi terbentuknya air melibatkan persamaan reaksi sebagai berikut:
2 H2 (g) + O2 (g) --> 2 H2O (g)
Pernyataan yang benar tentang persamaan reaksi di atas adalah ....
molekul air disebut zat pereaksi
koefisien reaksi molekul gas oksigen pada reaksi tersebut adalah 1
gas hidrogen dan gas oksigen disebut zat hasil reaksi
2 molekul air adalah zat hasil reaksi
ketiga fase dalam reaksi di atas sama, yaitu fase cair
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Propana (C3H8) terbakar menurut persamaan sebagai berikut.
C3H8 (g) + O2 (g) --> CO2 (g) + H2O (I) (belum setara)
Volum oksigen (T.P) yang diperlukan untuk membakar sempurna 3 liter gas propana (T.P) adalah ….
1 liter
3 liter
5 liter
8 liter
15 liter
4.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Gas metana (CH4) dan gas asetilena (C2H2) terbakar menurut persamaan reaksi sebagai berikut.
CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (g)
2C2H2 (g) + 5O2 (g) → 4CO2 (g) + 2H2O (g)
Pada pembakaran sempurna 5 liter (T.P) campuran metana dan asetilena, dihasilkan 6 liter CO2 (T.P) , maka volum metana dalam campuran itu adalah ….
1 liter
2 liter
3 liter
4 liter
6 liter
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pada pembakaran sempurna 1 liter gas CxHy (T.P) dihabiskan 3 liter gas oksigen (T.P) dan dihasilkan 2 liter gas karbon dioksida (T.P).
CxHy (g) + O2 (g) → CO2 (g) + H2O (g)
Rumus molekul gas Cx Hy itu adalah ….
CH2
C2H4
C2H2
C2H6
C3H6
6.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
Sebanyak 3 liter gas etuna (T,P) direaksikan dengan 10 liter oksigen (T,P) menurut persamaan :
C2H2 (g) + O2 (g) → CO2 (g) + H2O (g) (belum setara)
Volum oksigen yang tersisa adalah….
1 liter
2,5 liter
4 liter
7 liter
7,5 liter
7.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Pada suhu dan tekanan tertentu, 10 liter gas H2 mempunyai massa 4 gram. Pada suhu dan tekanan yang sama, massa 5 liter karbon monoksida adalah... .
7 gram
14 gram
28 gram
32 gram
44 gram
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