If these compounds are shaken in a test tube for 10-20 sec will they form a miscible (1 layer) or immisible (form 2 layers)?

Question

a) water and ethyl alcohol
miscible
b)water and dimethyl ether
miscible
c)water and methylene chloride
immisible
d)water and hexane
immisible
e)Hexane and methylene chloride
miscible

Am I correct? I'm trying to predict what will happen before I do this in lab.

Thanks =)

Answer 1

All of these look ok. My Merck Index lists ether as slightly soluble in water and water slightly soluble in ether. Sol ether in water is 8.3%(w/w). From that I would think miscible. It has been so long since I did this in the lab I've forgotten.

Answer 2

My lab book recommended that the Merck Index be used to look stuff up about the individual chemicals but it's quite costly, however it is simpler to look in 1 book rather than surfing the internet for awhile and having to site all the sources of the chemical information.

Answer 3

I forgot to say Thank You Dr.Bob =D

Answer 4

Most libraries have it.I bought mine from Amazon.com and bought a used copy for about half price. It's about 10 years old now and was about 2-3 years old when I bought it. So-called out of date copies are always a good bargain.

Answer 5

Hm..I'll look for one then.

Thanks Dr.Bob =)