KONSEP MOL
Quiz
•
Chemistry
•
11th Grade
•
Hard
Nimatul Khasanah
Used 2+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suatu senyawa dengan rumus C12H22O11 mengandung 96 gram karbon. Maka jumlah oksigen yang terkandung dalam senyawa tersebut adalah ...
11 gram
12 gram
66 gram
88 gram
98 gram
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika volume gas H2 yang terbentuk dalam keadaan standar sebanyak 0,672 liter, maka massa H2 yang terbentuk adalah ...
0,01 gram
0,02 gram
0,03 gram
0,04 gram
0,05 gram
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pembakaran sempurna 10,0 gram cuplikan yang mengandung senyawa hidrokarbon menghasilkan 8,8 gram karbon dioksida (CO₂) dan 3,6 gram air (H₂O). Jika Ar C = 12, H = 1, dan O = 16, berapakah persentase (%) massa karbon dalam cuplikan tersebut adalah ...
20%
21%
22%
23%
24%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui senyawa H2CO3 sebanyak 5 liter (Ar H = 1; N = 14; O = 16) memiliki massa 62 gram, maka konsentrasi dari HNO3 adalah ….
2 M
0,2 M
0,01 M
0,1 M
1 M
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada rekasi : Al + Cr2O3 -----> Al2O3 + Cr (belum setara)
Alumunium sebanyak 13,5 gram direaksikan dengan senyawa Cr2O3 seperti pada reaksi di atas. Maka massa logam krom yang dihasilkan pada reaksi tersebut adalah .... (Ar Al = 27 dan Cr = 52)
10,4 gram
13 gram
17,3 gram
26 gram
47 gram
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Gas C2H4 dengan volume 5 liter, dibakar sempurna sesuai reaksi: C2H4(g)+O2(g)→CO2(g)+H2O(g) (belum setara).
Jika reaksi berlangsung pada STP, maka volum gas CO2 yang dihasilkan adalah …
5 liter
3 liter
25 liter
15 liter
10 liter
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Krital CaCO3 seberat 30 gram dilarutkan dalam 500 gram air, jika massa atom relatif dari Ca = 40 ; C = 12; dan O = 16, maka molalitas larutan tersebut adalah….
0,4 molal
0,5 molal
0,6 molal
0,7 molal
0,8 molal
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