Cara Mengukur pH Air dan Tanah Dengan Kertal Lakmus
Summary
TLDRIn this educational video, Joko Warino demonstrates a simple pH test using litmus paper, a common tool among farmers and students. He tests two samples: tap water and soil, explaining the process of dipping the paper into the samples and comparing the resulting color to a reference chart. The video highlights the ease of using litmus paper for basic pH checks, though it points out the method's limitation in providing only rounded pH values without precision. The video concludes with the availability and affordability of litmus paper in local chemical stores, making it a practical tool for educational purposes.
Takeaways
- 🌿 The video is a tutorial by Joko Warino on testing the pH level of water and soil using pH indicator strips, also known as litmus paper.
- 🔍 The litmus paper is commonly used by farmers and is available in four colors to indicate different pH levels.
- 💧 The first sample tested is tap water, and the process involves dipping the litmus paper into the water for about 5-10 seconds.
- 🏺 The second sample is soil, which is mixed with water before testing with the litmus paper in the same manner as the water sample.
- ⏱ The testing duration for both samples is approximately 5-10 seconds to allow the paper to change color.
- 📏 The color change of the litmus paper is then compared to a color chart provided with the product to determine the pH level.
- 📍 The pH level of the tap water sample is found to be 5, indicating an acidic nature.
- 📏 For the soil sample, the pH level is also 5, which is the same as the tap water, suggesting a similar acidity level.
- 🚫 The video mentions that the pH indicator strips or litmus paper provide only an approximate pH value and cannot detect precise values like 4.5 or 4.7.
- 🛒 The price range for the litmus paper is mentioned to be around 40,000 to 60,000 Indonesian Rupiah, and it is available in various chemical stores.
- 👍 The video concludes by stating that while the litmus paper is not highly accurate, it is easy and practical for basic pH testing in experiments or to get a rough idea of the pH level.
Q & A
What is the purpose of the video?
-The purpose of the video is to demonstrate how to test the pH level of water and soil using pH indicator strips, also known as litmus paper.
Who is the presenter in the video?
-The presenter in the video is Joko Warino.
What are the two samples that the presenter tests in the video?
-The two samples tested in the video are tap water and soil.
What is the method used to test the pH level of the samples?
-The method used is by dipping the pH indicator strips (litmus paper) into the samples and comparing the resulting color with the color chart provided in the product packaging.
How long should the litmus paper be dipped in the sample for testing?
-The litmus paper should be dipped in the sample for about 5-10 seconds.
What is the pH range indicated by the color of the litmus paper after testing the tap water sample?
-The pH range indicated for the tap water sample is around 5.
Is there a limitation to the accuracy of pH indicator strips or litmus paper?
-Yes, the limitation is that they only provide whole number pH values and cannot detect decimal values such as 4.5 or 4.7.
What is the practicality of using pH indicator strips for testing pH levels?
-While not highly accurate, pH indicator strips are easy to use and can provide a general idea of the pH level for educational purposes or non-detailed assessments.
Where can pH indicator strips typically be purchased and what is their price range?
-They can be purchased at chemical stores and the price range is approximately Rp30,000 to Rp60,000.
What is the presenter's closing statement after the demonstration?
-The presenter ends with a hope that the video is helpful and closes with a greeting of 'assalamualaikum, warahmatullah wabarakatuh'.
Outlines
🧪 Testing Water and Soil pH with Litmus Paper
In this video segment, the host, Joko Warino, introduces a practical test to determine the pH level of water and soil using litmus paper, commonly known as pH indicator strips. The process involves using two samples: tap water and soil. The host demonstrates how to immerse the litmus paper in the water and soil samples for approximately 5-10 seconds and then compare the resulting color with a color chart provided in the product packaging. The first sample, tap water, shows a pH level of 5. The second sample, soil, also indicates a pH of 5, highlighting the simplicity of this method for determining the pH of both water and soil.
📏 Limitations and Practicality of pH Indicator Strips
The second paragraph discusses the limitations of using pH indicator strips or litmus paper for measuring the pH levels of water and soil. The host points out that these strips provide only rounded pH values, such as whole numbers from 0 to 14, and cannot detect decimal values like 4.5 or 4.7. Despite this inaccuracy, the host suggests that the strips can be useful for educational purposes or to get a rough estimate of the pH level. The video also mentions the affordability and availability of these strips, with prices ranging from Rp30,000 to Rp60,000, and their common presence in chemical stores. The host concludes by hoping that the video is helpful and ends with a traditional greeting.
Mindmap
Keywords
💡pH indicator
💡pH test
💡kertas lakmus
💡sample
💡tap water
💡soil
💡color chart
💡acidity
💡alkalinity
💡practicality
💡approximation
💡agriculture
Highlights
Introduction to the process of testing pH levels using pH indicator strips, commonly known as litmus paper.
Explanation of the litmus paper's color indicators, used to determine whether the pH level is low or high.
Demonstration of the pH testing procedure using two samples: tap water and soil.
The first sample tested is tap water, with the pH value determined after dipping the litmus paper for 5-10 seconds.
Comparison of the resulting color on the litmus paper with the pH color scale provided on the product box.
Determination of the tap water's pH level as approximately 5, based on the color match.
Second sample tested is soil, mixed with water to create a testable solution.
Same procedure followed for soil sample, with litmus paper dipped for a few seconds.
Result of soil pH test shows a similar pH level of 5, as indicated by the color match.
Discussion of the ease and practicality of using litmus paper for pH testing.
Highlighting the limitation of litmus paper, which provides only rounded pH values (e.g., 4 or 5) without finer precision.
Mention of litmus paper's suitability for basic practical use but not for detailed or highly accurate measurements.
Price range of litmus paper, generally available from IDR 30,000 to IDR 60,000, and accessible in agricultural stores and chemical supply shops.
Conclusion summarizing the video, apologizing for any shortcomings, and expressing hope that the content was beneficial.
Closing statement with a traditional Islamic greeting.
Transcripts
Halo
assalamualaikum warahmatullah
wabarakatuh
Hai jumpa lagi dengan saya Joko warino
dalam kesempatan ini saya ingin
melakukan tes terhadap air dan juga
tanah untuk mengetahui
ph-nya dengan menggunakan PH indikator
strip atau yang lebih dikenal dengan
kertas lakmus nah ini adalah kertas
lakmus
yang sering banyak digunakan oleh para
petani ataupun
Hai para yang melakukan praktikumnya
Hai nih di sini ada warna indikator yang
bisa digunakan nantinya untuk melakukan
Hai semuanya pengecekan Apakah ph-nya
itu rendah ataupun ph-nya itu tinggi dan
bentuk kertasnya itu
Hai seperti ini terdapat empat warna di
dalamnya nah seperti ini ini adalah
warna dasar ataupun warna
Hai sebelum dilakukan proses pencelupan
pada air
Oke kita mulai disini saya
menggunakan
dua sampel yang pertama yaitu adalah
sampel air kran nanti kita akan lakukan
pengecekan berapa PH air keren Kemudian
yang kedua yaitu adalah sampel tanah
nanti kita akan masukkan tanah saya akan
coba cari tanahnya terlebih dahulu
Oh
ya airnya terlalu banyak
Nah kita masukkan tanahnya
di kemudian
Hai diaduk hingga rata
nih Sudah cukup saya pikir
Hai
selanjutnya kita masukkan kertas lakmus
ditempel pertama yaitu sampel air kran
hai Nia
Hai Keh keh
the lounge
Hai
untuk Waktunya berapa lama itu sekitar
5-10 detik satu sudah cukup kemudian
kita cocokkan warna dari hasil
pengetesan ini dengan yang ada di box
ataupun yang ada di produknya yaitu
warna indikator
Oke
Kita sesuaikan
hai hai
ia berhenti
Hai nah ini sesuai ya warnanya ini
berada di Kisaran PH 5 kita lihat
cocoknya di angka 5 untuk yang sampel
pertama yaitu air keran
hai hai
Hai Kemudian untuk sampel yang kedua
kembali kita masukkan seperti yang di
sampel satu untuk waktunya sama beberapa
detik saja
the lounge
Ya sudah sekarang kita lakukan proses
pengecekan
placeholder
Indonesia
e-learning
nge-rap Man dari hasil pengecekan ini
bisa kita lihat nih ayat anaknya juga PH
5 terlihat nah
MP3 jauh berbeda dengan yang air kran
ini
Hai Jadi cukup mudah untuk melakukan
pengecekan terhadap PH air atau pun juga
pH tanah tapi kelemahan dari PH
indikator strip ini ataupun kertas
lakmus ini adalah
pengukuran atau nilai dari kemasan
mantan atau pH tanah itu tidak tepat dia
hanya mengambil angka bulatnya saja
misalkan PH
01234567 sampai dengan 14 dan tidak bisa
mendeteksi
misalkan PH 4,5 ataupun 4,7 hanya
menggenapkan empat ataupun 5 jadi memang
penggunaan kertas lakmus ini sebenarnya
tidak akurat digunakan tapi kalau untuk
sekedar hanya untuk praktikum ataupun
untuk mengetahui secara tidak detail
mungkin ini bisa digunakan
Hai cukup mudah dan praktis Nah untuk
harganya sendiri ini relatif ada yang
menjualnya Rp40.000 Rp30.000 Rp60.000
dan biasanya itu pertanian itu juga
tersedia di toko-toko kimia juga
tersedia jadi tinggal pilih aja terserah
mau beli dimana dan ini mudah didapatkan
mungkin sekian video dari saya kurang
dan lebihnya saya mohon maaf
semoga video ini bisa bermanfaat dan
saya kiri setelah mualaikum
warahmatullah wabarakatuh
hai hai
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