Massa molekul relative (Mr) Ca3(PO4)2 adalah 310, dengan Ar Ca = 40, O = 16. Ar P adalah ….
stoikiometri

Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Ika Virgowaty
Used 25+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
3 mins • 5 pts
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2.
MULTIPLE SELECT QUESTION
3 mins • 5 pts
2 L gas propana (C3H8) dibakar dengan 12 L gas oksigen sehingga terbentuk CO2 dan H2O. Uap air kemudian diembunkan dan dievakuasi dari reaktor.
Pernyataan berikut ini yang tidak sesuai adalah … .
Propana berperan sebagai pereaksi pembatas
Terdapat 8 L air yang dievakuasi
2 L gas oksigen tidak bereaksi
Tidak ada sisa reaktan dalam reaksi
Gas CO2 yang dihasilkan sebanyak 6 L
3.
MULTIPLE SELECT QUESTION
3 mins • 5 pts
4 mol aluminium beraksi dengan 4 mol oksigen membentuk aluminium oksida seturut reaksi berikut.
4Al (s) +3O2 (g) → 2Al2O3 (s)
Pernyataan berikut yang benar adalah … .
(Ar Al = 27, O = 16)
Aluminium sebagai pereaksi pembatas
Oksigen sebagai reaksi pembatas
Dihasilkan 4 mol Al2O3
Tidak terjadi reaksi karena dibutuhkan 8 mol alumunium
Oksigen yang tidak bereaksi sebanyak 1 mol
4.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Jika pada keadaan standar volume dari 2,8 gram gas sebesar 2,24 liter, maka massa molekul relative (Mr) gas tersebut adalah ….
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5.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Volume 8 gram gas oksigen (Ar O = 16) pada keadaan standar adalah ….
2,24 liter
2,8 liter
3,2 liter
5,6 liter
11,2 liter
6.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Jika Mr H2O = 18, berarti 18 gram H2O merupakan berat dari ….
1 liter H2O
1 dm3 H2O
1 ml H2O
1 mol H2O
1 molekul H2O
7.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Berapa massa molekul relatif (Mr) dari C2H5OH? Ar C= 12, O= 16, H= 1
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