Hi im doing a chemistry worksheet and some hard question came up that i have no idea how to solve. Ive been looking at it for at least 20 minutes now and nothing
The Question
Calculate the approximate time (in seconds) an 18 O 4 molecule would take to travel the 10cm path inside a TOF mass spectrometer if initially accelerated to 4.00keV. *18 O 4 = (superscript) 18 O (oxygen) 4 (subscript) Useful equations: 1keV= 1.602 x 10^-19 J Avogadros constant = 6.022 x 10^23 KE = 1/2mv^2 v=d/t
Hi im doing a chemistry worksheet and some hard question came up that i have no idea how to solve. Ive been looking at it for at least 20 minutes now and nothing
The Question
Calculate the approximate time (in seconds) an 18 O 4 molecule would take to travel the 10cm path inside a TOF mass spectrometer if initially accelerated to 4.00keV. *18 O 4 = (superscript) 18 O (oxygen) 4 (subscript) Useful equations: 1keV= 1.602 x 10^-19 J Avogadros constant = 6.022 x 10^23 KE = 1/2mv^2 v=d/t
I think you first have to use the formula relating to Avogadros constant to find the mass, which you could use in the kinetic energy equation.
Its the new reformed AS so i think its a lot harder
And theres me thinking chemistry is hard currently. My younger siblings are gonna have such a fun time. My sister is 10 and has an english revision guide.
Are you doing AS levels now too? Or have you already done them? Our teachers said this would be one of the hardest questions in the exam. The rest are hard but are doable with practice and some thinking
Are you doing AS levels now too? Or have you already done them? Our teachers said this would be one of the hardest questions in the exam. The rest are hard but are doable with practice and some thinking
I did ASs a few years ago. This is simply a question where you are given the energy of an object, work out the velocity using Ek=21mv2 and then it's just time=speeddistance to work out the time taken.
I did ASs a few years ago. This is simply a question where you are given the energy of an object, work out the velocity using Ek=21mv2 and then it's just time=speeddistance to work out the time taken.
The only part I get stuck on is the first part where you need to find the mass, I cant remember the equation with Avogadro's constant (that is the one you use right?)
The only part I get stuck on is the first part where you need to find the mass, I cant remember the equation with Avogadros constant (that i the one you use right?)