Praktikum Identifikasi Larutan Asam Basa II Lakmus, Larutan Indikator dan Indikator Universal
Summary
TLDRThis video script outlines a chemistry experiment focused on acid-base indicators. It details the use of various indicators such as litmus paper, phenolphthalein, methyl red, bromothymol blue, and universal indicator to test the pH of different samples. The process involves applying these indicators to labeled test plates, observing color changes, and then matching the results with standard color charts to determine the pH levels. The video also demonstrates the use of universal indicator for a comprehensive pH test, concluding with the pH values of the tested samples.
Takeaways
- 🧪 The video demonstrates a chemistry lab experiment focused on acid-base indicators.
- 📜 The main tools used include red and blue litmus paper, and various liquid indicators such as phenolphthalein (PP), methyl orange (Mm), bromothymol blue (BTB), and universal indicator.
- 🔬 The experiment involves testing the acidity or basicity of different samples using the indicators.
- 📝 The process starts with applying the samples to labeled test plates and then adding the litmus papers to observe color changes indicating the pH of the samples.
- 🌈 Litmus paper color changes are used to determine if a solution is acidic (red), basic (blue), or neutral.
- 🧬 The video also shows how to use liquid indicators to test the pH of samples, with each indicator providing a specific color change based on the pH level.
- 📊 The results of the tests are then compared to a color chart to determine the pH values of the samples.
- 🔍 The universal indicator is used for a more comprehensive analysis, providing a broader range of color changes to indicate pH levels.
- 🏺 The video suggests using a chemistry glass or a reaction tube for dipping the indicators, which can be more efficient than using test plates.
- 📚 The video concludes with a reminder that the interpretation of the results and the determination of pH values will be explained in a separate video.
Q & A
What is the main focus of the video?
-The main focus of the video is to conduct an experiment using acid-base indicators.
What are the types of litmus paper mentioned in the video?
-The types of litmus paper mentioned are red litmus and blue litmus.
What are the liquid indicators used in the experiment?
-The liquid indicators used are phenolphthalein (PP), methyl orange (MO), bromothymol blue (BTB), and methyl red (MR).
What is the purpose of using litmus paper in the experiment?
-Litmus paper is used to test the acidic or basic nature of the samples by observing color changes.
How does the video demonstrate the use of litmus paper?
-The video demonstrates the use of litmus paper by placing samples on labeled test plates and then adding blue and red litmus to the samples.
What is the significance of using sodium chloride solution in the experiment?
-Sodium chloride solution is used to show that neutral solutions do not change the color of litmus paper, as both red and blue litmus remain their original colors.
What is the role of universal indicator in the experiment?
-The universal indicator is used to determine the pH of the solutions by comparing the color changes with a color chart.
How are the liquid indicators applied to the samples in the video?
-The liquid indicators are applied to the samples by adding them to the labeled parts of the test plates.
What conclusion can be drawn from the color changes of the indicators?
-The color changes of the indicators help to determine the pH level of the samples, indicating whether they are acidic, basic, or neutral.
How does the video suggest concluding the pH of the samples?
-The video suggests concluding the pH of the samples by matching the observed color changes with a provided color chart.
What is the final step in the experiment as shown in the video?
-The final step in the experiment is to immerse the universal indicator into the solutions and match the resulting color with the color chart to determine the pH.
Outlines
🔬 Introduction to Acid-Base Indicator Experiment
In this introduction, the host welcomes chemistry enthusiasts to a video about an acid-base indicator experiment. The video demonstrates various indicators used in the experiment, including litmus paper, phenolphthalein (PP), methyl orange, bromothymol blue (BTB), and methyl red (MM). The tools and materials used in the experiment are presented, such as red and blue litmus paper, universal indicators, and a sodium chloride solution for neutral testing. The first test is using litmus paper to determine the acidity or basicity of different samples. Blue litmus turns red in acids, and red litmus remains unchanged in neutral substances like sodium chloride solution.
🧪 Using Liquid Indicators for Acid-Base Testing
This paragraph covers the experiment's second phase, focusing on the use of liquid indicators like phenolphthalein, methyl red, bromothymol blue, and methyl orange. The indicators are added to different samples labeled from A to E, and their color changes help in determining the pH levels. For example, phenolphthalein shows results ranging from colorless to pink, while methyl red and bromothymol blue provide different visible outcomes based on the sample's pH. The testing process for each sample is described in detail, showing the varied results obtained using different indicators.
⚗️ Universal Indicator and Final Conclusions
The third section explains how to use a universal indicator by submerging it into various solutions. This test provides a more precise pH reading, with colors being matched to a pH scale provided in the indicator kit. The pH values of the different samples are deduced, with the narrator confirming pH 11 for one sample and pH 14 for another. This final experiment allows for a more accurate conclusion regarding the acidity or basicity of the samples. The video concludes with a note of thanks and a hope that viewers found the information helpful.
Mindmap
Keywords
💡Indicator
💡Acid-base
💡Litmus
💡pH
💡Fenolphthalein (PP)
💡Methyl Red (MR)
💡Bromothymol Blue (BTB)
💡Universal Indicator
💡Titration
💡Neutral
💡Color Change
Highlights
Introduction to the experiment on acid-base indicators
List of materials used in the experiment: litmus paper, red and blue litmus, liquid indicators such as phenolphthalein, methyl red, bromothymol blue, and universal indicator
Demonstration of using litmus paper to test for acidity or basicity
Procedure for applying litmus solution to test samples
Observation of color changes in litmus paper indicating the pH of the samples
Testing the neutrality of a sample using sodium chloride solution and litmus
Introduction to liquid indicators for testing acidity and basicity
Application of phenolphthalein indicator to test samples
Use of methyl red indicator and its color change observations
Testing with bromothymol blue and interpreting the color changes
Application of metil orange indicator to determine pH levels
Concluding the pH testing with liquid indicators and summarizing the results
Introduction to the use of universal indicator for pH testing
Procedure for immersing the universal indicator into test solutions
Color matching exercise with universal indicator results
Final conclusion on the pH levels of the tested samples using universal indicator
Practical tips for using chemical glassware for pH testing
Thanking the viewers and closing remarks
Transcripts
halo
[Musik]
halo chemistry lovers pada video kali
ini kita akan melakukan praktikum
indikator asam-basa Yuk kita lihat
alat yang digunakan dalam praktikum
indikator asam dan basa
indikator yang pertama yaitu kertas
lakmus merah dan lakmus biru
bahan yang akan kita uji sifat asam dan
basanya
indikator asam-basa cair
fenolftalein atau disingkat dengan PP
Hai metil orange atau
Hai kemudian bromtimol biru atau btb dan
metil merah atau mm
yang ketiga adalah indikator universal
di Indonesia
Hai inilah semua alat dan bahan yang
digunakan dalam praktikum indikator asam
dan basa
[Musik]
yang pertama adalah uji asam basa
menggunakan indikator lakmus yang
pertama siapkan plat tetes yang sudah
dilabeli sampel dan kertas lakmus
Hai bekas selanjutnya adalah meneteskan
sampel pada tempatnya
[Musik]
Indonesia
hai hai
hai hai
Hai
[Musik]
setelah itu masukkan lakmus biru ke
dalam sampel a
b
c
d
dan e
Begitu juga dengan lakmus merah
dimasukkan ke dalam sampel
a
b
c
d c Hai mesin dan
i-click ikut hasil uji sampel dengan
menggunakan indikator lakmus lihat semua
hasil adalah asam dan basa Bagaimana
dengan lakmus di tempat Netral kita
lihat dengan menggunakan Larutan natrium
klorida
kita teteskan pada plat tetes
dan kita masukkan
lakmus merah dan lakmus biru
hasilnya lakmus merah tetap merah lakmus
biru tetap biru
selanjutnya uji asam dan basa and
menggunakan larutan indikator
pertama kita siapkan plat tetes yang
udah dilabeli yang mana Ini label nya
ada lima karena kita memiliki lima bahan
yang akan diuji yaitu
abcdefg untuk indikator yang kita
binatang adalah indikator
asam-basa cair gitu fenoftalein tepi
metil merah atm.bpd atau bromtimol biru
metilen ATM jadi disini bahkan dari akan
kita tambahkan setelah bahan dari yang
akan bunyi kita tambahkan kita tetesi
dengan indikator cair
sitescan sampela di bagian yang dilabeli
aha dan sampel B di bagian yang dilabeli
ISP lakukan sampai sampel e Hai ibu
hai hai
[Musik]
hai hai
[Musik]
badges0
hai hai
the lounge
Hai tertutup
hai hai
a text
hai hai
hai hai
[Musik]
[Musik]
Hai
teteskan masing-masing indikator sesuai
label dari sang file ah sampai sample
Hai ini pemberian indikator fenoftalein
pada mesin sampel A B C dan E
terlihat hasilnya ada yang tidak
berwarna dan warnanya
selanjutnya menggunakan indikator mm
kita teteskan ke
[Musik]
awbet88
[Musik]
II
hasilnya terlihat
berikutnya indikator btb
kita teteskan lagi ke sampela di CD dan
i
Hai
selanjutnya indikator metil orange
sampai lab
CD dan I
ini lah hasil uji menggunakan larutan
indikator dan dapat disimpulkan ph-nya
tentang cara menyimpulkan akan
dijelaskan pada video yang terpisah
Ayo
kita tuang larutan kedalam gelas kimia
agar mudah mencelupkan
indikator universal
gelas kimia dapat diganti dengan tabung
reaksi untuk penggunaan bahan yang lebih
efisien
Hai
High yang pertama kita coba uji larutan
a menggunakan
indikator universal speed kita celupkan
ke
Hai
sudah terjadi perubahan warna untuk
menentukannya kita cocokkan dengan
g-string yang ada di kotak
hai hai
Hai terlihat warnanya sama di
Hai
hadapkan dapat kita simpulkan bahwa
pihak dari aadalah
Hai pengujian by kita celupkan ke ini
ini hasil dipilih
kita cocokkan dengan indikator universal
gini kita mandi
terlihat dia sama gitu ya
hai hai hai hai
Hai maka dapat kita simpulkan bahwa pH
yang B adalah 11
kita lanjutkan dengan
yang sim
Hai
gini
kita cocokkan lagi
hai hai
hai hai
Hai jelek cocok warnanya dengan
hai hai
Hi Ho
Hai
jalankan dengan yang di
kita Tambahkan lagi
sama jadi satu
dan terakhir kita coba ke navy
di
sini nih warnanya
hai hai
ciri-ciri
sananya 14 yang sama berarti pihaknya
MP3
Hai terima kasih atas perhatiannya
dan semoga bermanfaat Sampai jumpa lagi
[Musik]
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