
Postest Stoikiometri Larutan
Quiz
•
Chemistry
•
University
•
Easy
Muhammad Fathurrahman
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Larutan perak nitrat bereaksi dengan larutan seng klorida menurut reaksi
2AgNO3(aq) + ZnCl2(aq) → 2AgCl(s) + Zn(NO3)2(aq)
Maka volume larutan ZnCl2 1 M yang diperlukan untuk menghasilkan AgCl sebanyak 14,35 gram adalah ….
(Ar : Ag = 108, N = 14, O = 16, Cl = 35,5, Zn = 65)
1000 cm³
500 cm³
250 cm³
100 cm³
50 cm³
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika 5 mg padatan dilarutkan dalam 100 mL larutan, kadar larutan ini dalam bpj adalah ….
0,05 bpj
0,5 bpj
5 bpj
50 bpj
500 bpj
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu larutan yang mengandung 45% glukosa mempunyai berat jenis 1,46 gram/cm3, dalam 50 ml larutan tersebut mengandung glukosa sebanyak ….
56,0 gram
32,85 gram
22,50 gram
15,41 gram
12,15 gram
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Molaritas 16,2 gram HBr dalam tabung dengan volume 0,05 L adalah ....
1 M
2 M
3 M
4 M
5 M
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika sebanyak 35,5 gram Na2SO4 dilarutkan dalam 100 gram air, maka kemolalan larutan Na2SO4 tersebut adalah ....
1 molal
2 molal
2,5 molal
3,5 molal
5 molal
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suatu cuplikan yang mengandung pirit (FeS) seberat 44 gram direaksikan dengan HCl sehingga dihasilkan FeCl2 dan gas H2S. Jika pada akhir reaksi diperoleh 7,5 liter gas H2S yang diukur pada saat 2,5 liter gas N2 bermassa 3,5 gram, maka persentase FeS di dalam cuplikan tersebut adalah ....
(Ar N=14, S=32, Cl=35,5, Fe=56)
25%
35%
45%
75%
90%
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebanyak 246 gram kristal magnesium sulfat MgSO4. xH2O dipanaskan sehingga terbentuk kristal MgSO4 sebanyak 120 gram, menurut reaksi: MgSO4. xH2O(s)→MgSO4(s) + xH2O(g)
Rumus senyawa kristal tersebut adalah .... (Ar Mg = 24; S = 32; 0=16)
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