Hopefully this was helpful! Although I said the 'v' variable was for velocity, this is technically incorrect since it doesn't include a direction, so in your exam refer to it as speed, as stated in the question. Hey-ho
There is an equation you need to remember for avogadros: number of particles = moles x avogadros number (particles can be ions, atoms or molecules) you can rearrange this and solve for different things. This question specifically asked for 1 mole, and detailed in the question that a germanium ion (single ion) reaches the detector. So you have to connect the dots and realise you just calculated the mass of 1 ion, and need to convert that into 1 mole using the equation I just provided by making the number of ions the subject, which is 1. Well, the mass of the ion can be used in this case, since that is what you're concerned with. I covered this in a video that covers every equation you need to know for amount of substance: ua-cam.com/video/w9l_EXydo3A/v-deo.html
hi, could someone pls clarify something for me, when you divide or multiply by Avogadros constant to get mass. in someone else's video I saw her dividing by the Avogardos constant but here I m seeing the exact opposite.
if you want to find the mass of a mole then you times by avg constant if you want to find the mole from the mass given (which im guessing is what the other video did ) then you divide by avg constant x 1000 hope that helps
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Hopefully this was helpful! Although I said the 'v' variable was for velocity, this is technically incorrect since it doesn't include a direction, so in your exam refer to it as speed, as stated in the question. Hey-ho
Helped me alot with some of the challenging ToF questions, thanks!!
No worries, glad it helped :)
Tysm I’ve used this vedio twice now to double make sure Ik what I’m doing it so clear and concise
Thank you so much!
No worries, good luck with your exams!
thank you
No worries! 😄
Is there a particular formula for when you should know when to times and divide by avagadros
There is an equation you need to remember for avogadros:
number of particles = moles x avogadros number
(particles can be ions, atoms or molecules)
you can rearrange this and solve for different things. This question specifically asked for 1 mole, and detailed in the question that a germanium ion (single ion) reaches the detector. So you have to connect the dots and realise you just calculated the mass of 1 ion, and need to convert that into 1 mole using the equation I just provided by making the number of ions the subject, which is 1. Well, the mass of the ion can be used in this case, since that is what you're concerned with. I covered this in a video that covers every equation you need to know for amount of substance: ua-cam.com/video/w9l_EXydo3A/v-deo.html
hi, could someone pls clarify something for me, when you divide or multiply by Avogadros constant to get mass. in someone else's video I saw her dividing by the Avogardos constant but here I m seeing the exact opposite.
if you want to find the mass of a mole then you times by avg constant
if you want to find the mole from the mass given (which im guessing is what the other video did ) then you divide by avg constant x 1000
hope that helps
@@muchayevamadzimure8895 thank you sooo much. i literally have my paper 1 tmrw so u have basically saved me! Thanks again! :)
@@lamiyakhokon890 how did it go