Recent content by phoenixlo

lol i know that but the course still goes on year after year with the same questions (CHM138) so if anyone in later years comes across this thread looking for an answer to the same question well there you have it:P

Commercially, distillation has a number of applications. It is used to separate crude oil into more fractions for specific uses such as transport, power generation and heating. Water is distilled to remove impurities, such as salt from seawater. Air is distilled to separate its...

jaded I am pretty sure you mixed up the two equations for both parts. For the first question i used the 2ndcosB = mlambda equation which is basically the wavelength given divided by twice the index of refraction of oil Then for the second part I used the equation 2ndcosB = (m*1/2)lamba so...