Stoikiometri lanjutan

Quiz
•
Chemistry
•
11th Grade
•
Medium
Budiyana Budiyana
Used 40+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
CaCO3(s) → CaO(s) + CO2(g)
Bila dipanaskan 1 kg kalsium karbonat (CaCO3) (Ar Ca = 40, C = 12, O = 16), maka volume gas CO2 yang dihasilkan pada keadaan standar (STP) adalah....
0,224 L
2,24 L
22,4 L
224 L
11,2 L
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Sebanyak 26,1 gram MnO2 direaksikan sesuai persamaan reaksi:
MnO2(s) + 2 NaCl(s) + 2 H2SO4(aq) → MnSO4(aq) + 2 H2O(l) + Cl2(g) + Na2SO4(aq)
maka massa NaCl yang dibutuhkan (Ar Na = 23 dan Cl = 35,5) adalah...
35,1 g
3,51 g
17,5 g
1,75 g
70,2 g
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pada pemanasan 24,5 gram KClO3(Ar K = 39, Cl = 35,5, dan O = 15) menurut reaksi:
KClO3(s) → KCl(s) + O2(g)
maka volume gas oksigen yang dihasilkan jika pada suhu dan tekanan yang sama, 0,3 mol gas nitrogen mempunyai volume 12 liter adalah ....
12 L
6 L
18 L
1,2 L
24 L
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Diketahui reaksi:
CaCO3(s) + 2 HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)
Jika 10 gram batu kapur (CaCO3) (Ar Ca = 40, C = 12, O = 16) direaksikan dengan larutan asam klorida, maka volume gas karbon dioksida yang dihasilkan pada keadaan standar (STP) adalah...
2,24 L
1,12 L
4,48 L
6,72 L
8,96 L
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Logam magnesium bereaksi dengan larutan asam klorida sesuai reaksi berikut.
Mg(s) + 2 HCl(aq) → MgCl2(aq) + 2 H2(g)
maka massa logam magnesium (Ar Mg = 24) yang harus dilarutkan dalam larutan asam klorida untuk menghasilkan 2,24 liter gas hidrogen pada keadaan standar (STP) adalah...
1,2 gram
2,4 gram
3,6 gram
4,8 gram
6 gram
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Sebanyak 0,5 mol Mg(OH)2 bereaksi dengan 0,5 mol HCl sesuai persamaan reaksi:
Mg(OH)2(aq) + 2 HCl(aq) → MgCl2(aq) + 2 H2O(l),zat yang merupakan pereaksi pembatas adalah....
Mg(OH)2
HCl
MgCl2
H2O
Tidak ada pereaksi pembatasnya
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Sebanyak 100 mL larutan NaOH 0,2 M bereaksi dengan 100 mL larutan HCl 0,1 M sesuai persamaan reaksi:
NaOH(aq) + HCl(aq) → NaCl(aq) + HCl(aq), jumlah mol pereaksi yang sisa adalah...
10 mmol NaOH
10 mmol HCl
10 mmol NaCl
5 mmol NaOH
5 mmol HCl
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