Welcome to another post on my blog. On Monday, in Science, we had done a 'Serial Dilution experiment'. First, we learnt what is dilution - Making something less concentrated. There will be fewer particles in the liquid. Next, we learnt the difference between
dilute and
concentration.
Dilute contains a small amount of solute. If you were to make a 'weak' coffee, in scientific terms, you will be making a dilute coffee. A
concentrated solution contains a large amount of solute. If you were to make a 'strong' coffee, in scientific terms, you will be making a concentrated coffee. After that, the class had done an experiment which we had to make a dilution series to investigate concentration.
Conclusion:
I could see the colour (from the start), transparent and light, as we see going to the second and third test tube, it gets darker and gets more concentrated. The last test tube looked very dark and concentrated.
Why did you see and why?
I think, from my knowledge, the test tubes get darker because we add a single crystal of potassium permanganate (KMnO₄) to the test tube and some from the last test tube. In short, we add from the last test tube and a single crystal of KMnO₄, so it gets more concentrated.
I hope you like my post. Have a nice day!! Bye!!
