Search found 13 matches

by Mahir Pepic 3F
Tue Feb 23, 2016 1:32 pm
Forum: General Science Questions
Topic: Polarity of Water
Replies: 1
Views: 462

Polarity of Water

I know that water is a polar molecule. And I know that it is an amazing solvent. But, why does the polarity of water make it such a good solvent?
by Mahir Pepic 3F
Fri Feb 19, 2016 1:20 am
Forum: First Order Reactions
Topic: First Order Reactions
Replies: 1
Views: 209

First Order Reactions

Are all First Order Reactions decay functions?
by Mahir Pepic 3F
Sun Feb 14, 2016 9:25 pm
Forum: Environment, Fossil Fuels, Alternative Fuels
Topic: Concept of "Cold"
Replies: 4
Views: 706

Concept of "Cold"

I recently read that there is no such thing as "cold" according to thermodynamics. The sensation of "cold" is actually really just an absence of heat. How then, does does adding ice to hot coffee cause it to become more cold if we are just adding quantities of substance that are ...
by Mahir Pepic 3F
Wed Feb 10, 2016 2:31 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Gibbs Free Energy
Replies: 2
Views: 358

Re: Gibbs Free Energy

Thank you, I found this really helpful
by Mahir Pepic 3F
Sun Jan 31, 2016 7:48 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7337
Views: 788988

Re: Chemistry Jokes

"Did you hear about the chemist who was reading a book on Helium?"

-"He couldn't put it down!"
by Mahir Pepic 3F
Sun Jan 17, 2016 8:34 pm
Forum: Phase Changes & Related Calculations
Topic: Chemistry Humor
Replies: 26
Views: 2285

Re: Chemistry Humor

"Stay away from the enthalpy pirate," he told the gem collector, "he'll steal your joules!"
by Mahir Pepic 3F
Sun Jan 17, 2016 8:24 pm
Forum: Phase Changes & Related Calculations
Topic: Enthalpy
Replies: 3
Views: 347

Re: Enthalpy

Is the specific heat of a substance the same thing as its heat capacity?
by Mahir Pepic 3F
Sat Dec 05, 2015 4:20 pm
Forum: Empirical & Molecular Formulas
Topic: Video: Deriving the Empirical Formula
Replies: 2
Views: 343

Re: Video: Deriving the Empirical Formula

Oops! Total accident haha, sorry about that.
by Mahir Pepic 3F
Fri Nov 27, 2015 5:37 pm
Forum: Empirical & Molecular Formulas
Topic: Video: Deriving the Molecular Formula
Replies: 1
Views: 375

Video: Deriving the Molecular Formula

Reviewing part B of midterm question #2.
by Mahir Pepic 3F
Fri Nov 27, 2015 5:26 pm
Forum: Empirical & Molecular Formulas
Topic: Video: Deriving the Empirical Formula
Replies: 2
Views: 343

Video: Deriving the Empirical Formula

Reviewing problem 2 of the midterm.
by Mahir Pepic 3F
Tue Oct 27, 2015 1:08 am
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge and its significance
Replies: 2
Views: 616

Re: Formal Charge and its significance

So to elaborate on this topic, I will use BeCl2 as an example. When drawing out the Lewis Structure, we should go with Cl-Be-Cl instead of Cl=B=Cl even though the latter "looks" better (because the central atom would have an octet), because the formal charge of the first one would be zero?
by Mahir Pepic 3F
Sat Oct 10, 2015 4:14 pm
Forum: Properties of Electrons
Topic: Shielding
Replies: 2
Views: 508

Shielding

So basically: The effective nuclear charge of an electron in a p orbital would be lower than that of one in an s orbital because the s orbital is shielding the p orbital in that situation? And it would be even lower in a d orbital because it has the s orbital AND the p orbital shielding it? Am I on ...
by Mahir Pepic 3F
Sat Oct 03, 2015 9:06 pm
Forum: Empirical & Molecular Formulas
Topic: Molecular Formulas and Rules for Figuring out their Names
Replies: 4
Views: 575

Re: Molecular Formulas and Rules for Figuring out their Name

I have a general understanding of how to name compounds when ending with "-ide." However, what is the rule (if any) for figuring out how to name a compound ending in "-ate" or "-ite" etc.? Thanks!

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