STOIKIOMETRI
Quiz
•
Chemistry
•
11th Grade
•
Hard
Susri Alfuadi
Used 23+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika 2,7 gram aluminium (Ar Al = 27) dilarutkan dalam 500 ml larutan H2SO4
itu menghasilkan aluminium sulfat dan gas hidrogen. Molaritas H2SO4 yang terjadi
adalah.... M
0.9
0.6
0.3
0.06
0.03
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jika massa atom relatif Ar : N = 14; H = 1 dan konstanta Avogadro = 6 × 1023, dalam 8 gram N2H4
ada atom nitrogen sebanyak...atom
3 × 1023
6 × 1022
1.2 × 1023
1.5 × 1023
3 x 1022
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 10 gram padatan kalium klorat dipanaskan dalam wadah tertutup, sehingga terjadireaksi sesuai persamaan : 2 KClO3(s) → 2 KCl(s)+ 3 O2
(g)Massa zat yang dihasilkan adalah....
lebih besar dari 25 gram
lebih besar dari 10 gram
sama dengan 10 gram
lebih kecil dari 25 gram
lebih kecil dari 10 gram
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
CaSO4.3H2O
CaSO4.4H2O
CaSO4.5H2O
CaSO4.6H2O
CaSO4.7H2O
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bila 0,24 gram zat yang mengandung karbon memerlukan 112 mL oksigen pada (STP) untuk membakar semua karbonnya maka persentase karbon (Ar C=12) dalam zat adalah...%.
25
35
50
75
80
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 10,8 gram logam aluminium habis bereaksi dengan 9,6 gram oksigen dalam ruang tertutup, membentuk aluminium oksida sesuai dengan persamaan reaksi:
4Al(s) + 3O2(g)→ 2Al2O3(s) (Ar: Al=27, O=16).
Massa aluminium oksida yang terbentuk adalah... gram
3.6
10.8
13.0
20.4
102
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tahap awal pembuatan asam nitrat dalam industri melibatkan reaksi oksidasi amonia yang menghasilkan nitrogen monoksida dan uap air menurut reaksi berikut ini:
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
Volume nitrogen monoksida yang dihasilkan pada reaksi 6 liter gas amonia (P.T) adalah.... liter
4
6
10
12
14
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