(Untitled)

[lissie_pissie]

Is anybody up and good at science? I am having issues understanding the difference between miscible or immiscible mixtures. I understand that miscible means they don't separate, but IDK how to tell if a mixture IS miscible. Like I have

Comments

[brittania]

Do you have a solubility chart in the back of your textbook?

omg I'm so bored I googled it.
"CBr4, H20, C02 , CH2O. H2O, CBr4, CO2, CH2O. H2O, CBr4, CH20, CO2 ... £AQ CF4 should be soluble in water because there are weak dispersion» forces"

[lissie_pissie]

I'm not seeing one but she's like, "Based on your answers from 5 and 6, determine if the following are miscible, etc", and 5 and 6 was just me labeling compounds and molecules as either nonpolar or polar. So does that have something to do with it? I do see in the book that NaCl is soluble in H2O, so does that mean it's immiscible?

WAIT. I think I figured it out. I'll be back if it turns out i havent, lol. TY!!!!! You totally made it click lol

[brittania]

oh thank god because I was totally stumped. IT'S BEEN A WHILE SINCE CHEMISTRY CLASS. Good luck, bb!

[lissie_pissie]

THEYRE MAKING ME. D: D: D:

[spoopy]

Oil and water, for example, are immiscible; when you mix the two together, you can clearly see the two liquid properties. Water, on the other hand, is a miscible liquid because the properties that make up H2O are completely mixable.

ahaha idk if that explanation helps. The only way I passed science, though, was by writing my study notes as though I was explaining something to a ten year-old. I did the same with maths, too, as that was never my strong point, either.

I was thinking about this more and I guess another simple way of defining a miscible liquid from an immiscible liquid is that a combination of miscible substances will form a solution, but an immiscible combination of substances will not form a solution. If the particles in the combined substances are evenly spread (homogeneous), they are miscible.

[lissie_pissie]

I think the confusing part for me is that when I'm given like, "NaCl" for example, if that's going to behave like oil, for example, and not mix in. I think I get the concept but I have no idea how to tell if they're immiscible based on their little three-letter codes. What you said totally makes sense though, and helps with clarity on the concept itself.

The only way I passed science, though, was by writing my study notes as though I was explaining something to a ten year-old.
That is a smart idea.

[spoopy]

Ahh, yeah. Learning the actual periodic table and the chemical components in their scientific form was always a bitch for me. Like, I know NaCi is salt but to look at it it just looks like Nike spelt incorrectly.

Which was actually one way I learned the periodic table and chemical compounds. I associated the chemical elements with a word. Like ruthenium is Ru I associated that with Russia. Barium, or Ba, I associated with Baa Baa Black Sheep... ahahaha. Sounds like a dumb way to learn it but it helped make things stick in my head.

Like Na for sodium and Cl for chloride... you could associate that with "Nah" or "no" and "cl" with the first two letters of 'clit'. Lol. "No clit. OH. SALT."

Ahaha I was just thinking, you could associate stuff with House and House/Cuddy. Praseodymium, or Pr - Partypants. Americium, or Am - Amber. Cadmium, or Cd - Cuddy. etc.

[gentleflower]

...Opposites attract?
No I really don't even know what most of those words mean up there.

[lissie_pissie]

LMAO LMAO SLKJDFHJKLDSHFHJKLFHJKLADS.
♥

If I don't know an answer on my test, I'm just going to draw a picture of MC Skat Kat.

[gentleflower]

PLEASE PLEASE DO.

OR YOU COULD ALSO JUST ANSWER WITH LYRICS.
And you know-it ain't fiction, just a natural fact

[ussh]

Finally my major in chemistry can be used for something!

Like dissolves like - polar dissolves in polar
non-polar will not dissolve in polar.
Solution is classed as miscible if both are either polar or both non-polar.
Solution is classed as immiscible if one is polar and one non-polar.
The polarity of a substance is based on its charge and its structure - this is where your lewis diagrams come in.

I will leave you with my favourite chem joke cos it totaly fits:
A bear jumped into a puddle and dissolved why?
Because it was a Polar Bear!!!!!!