Wow! Your honestly amazing! Since school Isn't open, I had to learn all this myself and I managed to understand the whole topic in less than two hours in quarantine. Thanks xx
that is vey true kawata shop. i know this as i have done my IGCSE chemistry and i have lost count of how many times i have watched his videos. he is an inspiration to us all
Please keep up the work. I am working through your videos and I NEED you to continue. I am thinking to buy your revision work book so I can do exam practice. I am a triple student so make them hard! Thanks! 😁
im in year 9 and I'm doing triple science along with some heavy coursework subjects such as history and textiles anyone have any tips on how to handle and manage everything at yr 10 thank u so much and I love your videos!
When you're at that stage, I recommend you eat snacks when you do homework, and remember to drink your water!! Also, if you have to revise for mock exams etc, make a plan early on as soon as you are told you have to revise. Homework shouldn't be too difficult to get done, however different schools vary. And the MOST IMPORTANT THING I can say: Don't overwork yourself! Take necessary breaks, do your hobbies, and ensure you get 8 hours of sleep every night, otherwise you will get tired, and it could take a few days to recover.
There was a thing that I REALLY regretted not doing in year 10, and that was make revision rescources as you go. -Everyday after school, make revision rescources (e.g.mind maps, flashcards, etc.) on the classwork that day. -If you don't understand something, immediately consukt a teacher, and at the weekend do some light revesion and consolidate the content you learnt the previous week. -Remember, revise little and often with small breaks, and not in giant blocks of work with massive breaks. -Also, soend the summer holidays consolidating all of your year 10 classwork!!
Hello sir thanks for these immensely convenient and tremendous helpful videos - I just wanted to ask you know the last part on flame emission spectroscopy - how can we determine to concentration of the metal ions present ( may you please explain further of what you mean by the intensity of the lines). Thanks
Hi and thanks for the comment. The "intensity" is essentially how strong or thick the lines are. A very thin or faint line shows a low concentration. A thick or strong line shows a high concentration.
Freesciencelessons thanks a lot sir! Couldn’t you also use the light intensity of the flame aswell as using the calorimeter? If so, may you please explain this concisely. Thanks for your immense support. Or alternatively, does the thickness of the lines represent how intense the light is and therefore how concentrated the metal ion is in the sample.
The thickness of the lines represents the intensity of the light and the concentration of the ion. And be careful, it's colorimeter not calorimeter (which is a different piece of equipment).
For a sample I know you can just measure the intensity of the wavelength (light) of the particular ion we are interested in. Oh wait I’m thinking I’m wrong - aren’t we given the concentration of the ion in the solution already? And we just only use flame emission spectroscopy to identify unknown metal ions in a sample? ( how do we determine the concentration of metal ions in dilute solutions?) if I’m right. I’m sorry for the spam. No more I promise.
I'm currently revising C8, and I'm really confused. I'm doing trilogy/combined, and my teacher taught us flame tests and we even had a small exam on them. Are we meant to know these?
I'm so confused... my class do combined science foundation (im doing higher tho) and we did a practical on flame tests and got taught about the chemicals and the colours. we even did practise papers with flame test questions on so naturally I revised for flame tests as well as other components but it wasn't on our assessment..? Like why bother teaching us it if we're not going to do it in our exam??? just to confuse us orrrrr?
