

koligatif
Presentation
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Budi Supriono
FREE Resource
39 Slides • 56 Questions
1
2
Multiple Choice
What is the main focus of the module titled 'KIMIA'?
Biology
Physics
Chemistry
Mathematics
3
4
Multiple Choice
What is the main topic discussed in this module?
Chemical Reactions
Colligative Properties of Solutions
Acid-Base Reactions
Thermodynamics
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6
Open Ended
What is the significance of the 'Latihan Soal' sections in the module?
7
Fill in the Blanks
Type answer...
8
Multiple Choice
What is the purpose of the section titled 'KONSENTRASI LARUTAN'?
To describe the learning objectives
To summarize the material
To provide exercises
To evaluate self-assessment
9
Multiple Choice
What are the main components listed in the table of contents for the chemistry module?
PENYUSUN
DAFTAR ISI
GLOSARIUM
PETA KONSEP
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11
Multiple Choice
What is the main topic discussed in the module?
Osmotic Pressure
Chemical Reactions
Acid-Base Balance
Thermodynamics
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14
Open Ended
What is the relationship between 'Fraksi Mol (X)' and the concentration of a solution?
15
Open Ended
Explain the concept of 'Tekanan Osmotik' and its significance in solutions.
16
Multiple Choice
What does the term 'Titik Didih' refer to in the context of solutions?
The temperature at which a liquid boils
The temperature at which a liquid freezes
The pressure at which a liquid evaporates
The concentration of a solute in a solution
17
Multiple Choice
What is the definition of Molaritas (M)?
Concentration of solute in a solution
Number of moles of solute per liter of solution
Mass of solute in grams
Volume of solution in liters
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19
Open Ended
Explain the importance of understanding colligative properties in everyday life.
20
Multiple Choice
What are the phenomena of colligative properties of solutions that are discussed in this module?
Vapor pressure lowering
Boiling point elevation
Freezing point depression
Osmotic pressure
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22
Open Ended
Explain the significance of colligative properties in relation to solute concentration.
23
Fill in the Blanks
Type answer...
24
Multiple Choice
What does molality (m) represent in a solution?
The number of moles of solute per liter of solution
The number of moles of solute per kilogram of solvent
The mass of solute in grams
The volume of solution in liters
25
Multiple Choice
What is the formula for calculating molarity (M) in a solution?
M = n/V
M = m/Mr x 1000/V (mL)
M = %/Mr x 1000 (100 - %)
M = m/V
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27
Open Ended
Hitunglah fraksi mol masing-masing zat dalam larutan yang terdiri dari 90 gram glukosa dan 360 mL air!
28
Multiple Choice
Apa yang dimaksud dengan fraksi mol (X) dalam larutan?
Perbandingan mol zat terlarut terhadap mol seluruh komponen
Perbandingan massa zat terlarut terhadap massa seluruh komponen
Perbandingan volume zat terlarut terhadap volume seluruh komponen
Perbandingan jumlah partikel zat terlarut terhadap jumlah partikel seluruh komponen
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30
Multiple Choice
Sebanyak 6 gram urea dilarutkan dalam 90 gram air. Fraksi mol urea dalam larutan itu adalah ....
0,0164
0,02
0,0625
0,0667
31
Multiple Choice
Volume air yang diperlukan untuk melarutkan 4,9 gram H2SO4 yang konsentrasinya 0,25 m (Ar H = 1; S = 32; O =16) adalah ....
2 mL
10 mL
20 mL
100 mL
32
Multiple Choice
Suatu senyawa memiliki massa molar (Mr)= 60 gram/mol. Massa 0,25 mol senyawa tersebut adalah…
10 gram
12 gram
15 gram
20 gram
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34
Multiple Select
List the questions that students need to answer honestly regarding their understanding of the material.
Saya dapat menganalisa bagaimana fenomena sifat koligatif penurunan titik beku
Saya dapat menghitung fraksi mol terlarut dan pelarut
Saya dapat menghitung penurunan tekanan uap larutan
Saya dapat menganalisa hubungan fraksi mol terlarut dengan tekanan uap larutan
35
Multiple Select
What are the different levels of mastery based on the score percentage?
90 - 100%: baik sekali
80 - 89%: baik
70 - 79%: cukup
< 70%: kurang
36
Multiple Choice
What is the formula to calculate the score based on the number of correct answers?
Nilai = Jumlah Skor Perolehan
Nilai = Jumlah Skor Maksimum
Nilai = Jumlah Skor Perolehan / Jumlah Skor Maksimum x 100%
Nilai = Jumlah Skor Perolehan + Jumlah Skor Maksimum
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38
39
Open Ended
Jelaskan apa yang dimaksud dengan penurunan tekanan uap larutan!
40
Multiple Select
Sifat koligatif larutan terdiri atas 4 sifat, yaitu: 1. Penurunan tekanan uap (___) 2. Kenaikan titik didih (___) 3. Penurunan titik beku (___) 4. Tekanan osmotik (___)
ΔP
ΔT_b
ΔT_f
π
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42
Multiple Choice
Tekanan uap jenuh air pada temperatur 25°C adalah 30 mmHg. Tentukan penurunan tekanan uap jenuh air, jika ke dalam 90 gram air dilarutkan 18 gram glukosa (C6H12O6) dengan Mr = 180!
0,1 mol
0,02
0,6 mmHg
0,5 mol
43
Multiple Choice
Berdasarkan eksperimen Marie Francois Raoult (1878) pada suatu larutan, partikel-partikel zat terlarut akan menghalangi gerak molekul pelarut untuk berubah dari bentuk cair menjadi bentuk uap sehingga tekanan uap jenuh larutan menjadi lebih rendah dari tekanan uap jenuh larutan murni. Adapun bunyi Hukum Raoult yang berkaitan dengan penurunan tekanan uap adalah sebagai berikut: a. Penurunan tekanan uap jenuh tergantung pada jumlah partikel zat terlarut. b. Penurunan tekanan uap jenuh berbanding lurus dengan fraksi mol zat terlarut sehingga semakin besar nilai fraksi mol zat terlarut maka tekanan uap larutan akan semakin rendah. Hukum Raoult tersebut dapat dirumuskan sebagai berikut: ΔP = Xt . Po. Apabila tekanan uap pelarut di atas larutan dilambangkan P maka ΔP = P0 - P Jika komponen larutan terdiri pelarut dan zat terlarut dengan tetapan rumus berikut: Xp + Xt = 1 , maka Xt = 1 - Xp. Persamaan akan menjadi: ΔP = Xt . Po P0 - P = (1 - Xp) Po P0 - P = P0 - Xp . Po P = Xp . Po Keterangan : ΔP = Penurunan tekanan uap (mmHg) Xp = Fraksi mol pelarut Xt = Fraksi mol terlarut Po = Tekanan uap jenuh pelarut murni (mmHg) P = Tekanan uap larutan (mmHg)
ΔP = Xt . Po
ΔP = P0 - P
P = Xp . Po
P = Xt . Po
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45
Multiple Choice
What does Raoult's Law state about the vapor pressure of a solution?
It states that vapor pressure decreases with increasing solute concentration.
It states that vapor pressure increases with increasing solute concentration.
It states that vapor pressure is independent of solute concentration.
It states that vapor pressure is equal to the solute's vapor pressure.
46
Open Ended
Explain how to obtain pure benzene from a mixture using distillation.
47
Multiple Choice
What is the formula for calculating the vapor pressure of a solution?
P = Xp * Po
P = Xp + Po
P = Xp / Po
P = Xp - Po
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49
Multiple Choice
Sebanyak 100 gram sukrosa (Mr = 342) dilarutkan dalam 500 gram air pada suhu 25 °C mempunyai tekanan uap ... (tekanan uap air jenuh = 23,76 mmHg).
0,247 mmHg
24 mmHg
23,513 mmHg
25 mmHg
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51
Open Ended
Calculate the vapor pressure (P) of the solution containing CO(NH2)2. Show your calculations.
52
Open Ended
Calculate the mole fraction (Xp) of sucrose in the solution described. Show your calculations.
53
Multiple Choice
Based on Raoult's Law, how does the vapor pressure of a solution change with the addition of solute?
It increases
It decreases
It remains the same
It fluctuates
54
Multiple Choice
What are the four properties of colligative solutions mentioned in the text?
Vapor pressure lowering (ΔP)
Boiling point elevation (ΔTb)
Freezing point depression (ΔTf)
Osmotic pressure (π)
55
56
Open Ended
Saya dapat menganalisa hubungan fraksi mol terlarut dengan tekanan uap larutan
57
Open Ended
Saya dapat menghitung penurunan tekanan uap larutan
58
Open Ended
Saya dapat menghitung fraksi mol terlarut dan pelarut
59
Open Ended
Saya dapat menganalisa bagaimana fenomena sifat koligatif penurunan titik beku
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61
Open Ended
Explain the process of making ice cream and how it stays cold even after being in a cart for a long time.
62
Multiple Choice
What is the phenomenon of freezing point depression and boiling point elevation in solutions?
Freezing point depression
Boiling point elevation
Both freezing point depression and boiling point elevation
None of the above
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64
Multiple Choice
Apa pengaruh zat terlarut terhadap proses pembekuan pelarut?
Zat terlarut tidak mempengaruhi titik beku
Zat terlarut meningkatkan titik beku
Zat terlarut menurunkan titik beku
Zat terlarut tidak berpengaruh pada pelarut
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66
Open Ended
Explain how the addition of salt affects the freezing point of water according to the text.
67
68
Multiple Choice
What is the boiling point of the solution when 18 grams of glucose is dissolved in 1000 mL of water?
100.052°C
100.000°C
100.100°C
100.200°C
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70
Open Ended
Diagram di atas dapat digunakan untuk menganalisa bagaimana pengaruh sifat koligatif larutan berdasarkan variabel tekanan (P) dan suhu (T).
71
Open Ended
Coba kalian cermati diagram di bawah ini!
72
Open Ended
Dari diagram 3 fasa tersebut, hal apakah yang dapat kamu kemukakan? Dapatkah kalian melihat posisi dari ketiga wujud zat yang ada? Adakah pengaruh tekanan pada diagram tersebut?
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Open Ended
Untuk larutan yang memiliki kesamaan konsentrasi (glukosa 1 m dan sukrosa 1 m), apakah terjadi perbedaan titik didih larutan? Jelaskan mengapa demikian!
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76
Multiple Choice
Suatu larutan urea dalam air memiliki penurunan titik beku 0,372 °C. Jika Kb air = 0,52 °C/m dan Kf air = 1,86 °C/m maka kenaikan titik didih larutan urea tersebut adalah ....
2,6 °C
0,04 °C
0,892 °C
0,104 °C
0,026 °C
77
Multiple Choice
Sebanyak 450 gram glukosa (Mr = 180) dilarutkan dalam 2 kg air (Kb = 0,52) akan mendidih pada suhu ... °C.
0,65
100,65
100
100,325
78
Multiple Choice
Sebanyak 18 gr glukosa (Mr = 180) dilarutkan dalam 500 gram air. Jika Kf air = 1,8, maka titik beku larutan tersebut .....
-0,18°C
+0,36°C
+0,18°C
-0,36°C
-0,72°C
79
Multiple Choice
Beberapa contoh penerapan sifat koligatif larutan dalam kehidupan sehari-hari adalah sebagai berikut. 1. Proses penyerapan air dalam tanah oleh akar tanaman 2. Membasmi lintah dengan menabur garam dapur 3. Pemakaian garam dapur untuk pencairan salju 4. Penambahan etilena glikol pada radiator mobil Penerapan sifat koligatif yang berkaitan dengan penurunan titik beku larutan adalah ...
1 dan 2
1 dan 3
2 dan 3
2 dan 4
E. 3 dan 4
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81
Fill in the Blanks
Type answer...
82
Multiple Choice
Hitung dulu molal zat dari data penurunan titik beku. ΔTf = m x Kf. Jika ΔTf = 0,372° m = ?
0,1 molal
0,2 molal
0,3 molal
0,4 molal
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