Mentioning accepted conference papers that were not presented If I have a paper accepted in a known conference of my field but am not able to present it at the the conference due to certain factors, should this be mentioned on my Master's application? 

Also, where/how should this be mentioned?
If a paper is being withdrawn, then I would not give it any weight if I were reviewing a grad school application. The publications &amp; presentations section of your CV is evidence of scholarly achievement, and so if the presentation didn't take place, there was no achievement -- I know of many conferences that have a nearly 100% acceptance rate, so having the paper accepted may simply be evidence of your ability to write coherently.