Can you write captions for chemistry video course?

hi
I have chemistry video lectures about 3 hours made in separated videos
it is presented in English
i need someone to make caption for the lectures
the worker should be familiar which chemistry vocabulary like moles for example and so on
how you will work?
you will be given a video tube link
then you will go to the following link

----------

and you will add tube to link then you will start listen to audio on video and write the caption exactly with the same time
then when you finish the video you will save it in VTT format and send it to me

try with this example if you find you self qualified and tell me
add this link
----------

to
----------

start writing caption then save it in VTT formate and send it to me