weight loss cardiff answers:

There is a simple rule that is easy to remember and follow…”like dissolves like”. What it means is that solvents which possess certain physical characteristics will dissolve solutes that possess similar physical characteristics. At it’s most general meaning, orgainc solvents will dissolve organic compounds. That being said, all the compounds you listed will dissolve in diethyl ether. HOWEVER, not all of the compounds you listed are MORE soluble in diethyl ether than water. Glucose, for one, is actually more soluble in water than it is in ether. The reason is because water is more polar than ether and can hydrogen bond with water more freely than with ether since water has both hydrogen bond donor and acceptor atoms. Similarly, the more ‘hydrocarbon-like’ a solute is (with 2-napthol being the most hydrocarbon-like compound of the ones listed), the more soluble it will be in less polar solvents.

Hope this helps!!!

weight loss cardiff answers:

_____molality is moles of solute / kg solvent

here THF is the solvent and Et2) is the solute

moles solute = 671.3 ml * d Et2O g/ml / MW Et2O g/mole = ?? Moles Et2O

1.45m = 1.45 moles / kg = ?? Mole / x kg of solvent

x g of solvent = 1000 g/kg * ?? Mole Et2O /1.45 mole/kg = ?? G THF

Plug missing info and SOLVE

Basic mathematics is a prerequisite to chemistry – I just try to help you with the methodology of solving the problem.

weight loss cardiff answers:

Diethyl ether is a colourless, extremely volatile liquid with a characteristic smell. It is used as am anaesthetic, although it is not an ideal anaesthetic. It is safer than chloroform and more effective than nitrous oxide. Unwanted effects of exposure to ether can include a cough, sore throat, painful red eyes, a headache, drowsiness, laboured breathing and nausea. Vomiting is quite common.

But some people like its sub-anaesthetic effects on consciousness when you sniff it; it has “abuse potential”.