Search found 30 matches

by Manas_Varma_4B
Sun Dec 09, 2018 2:29 pm
Forum: Bronsted Acids & Bases
Topic: Strong base
Replies: 5
Views: 202

Re: Strong base

It is a strong base because it fully ionizes in water, so the OH- comes off and the molecule doesn't have anymore.
by Manas_Varma_4B
Sun Dec 09, 2018 2:28 pm
Forum: Bronsted Acids & Bases
Topic: Strong acid
Replies: 5
Views: 171

Re: Strong acid

It is a strong acid because it fully ionizes in water, it fully disassociates.
by Manas_Varma_4B
Sun Dec 09, 2018 2:28 pm
Forum: Bronsted Acids & Bases
Topic: Are all molecules with a H amphiprotic?
Replies: 2
Views: 153

Re: Are all molecules with a H amphiprotic?

Not all do, for example Al2O3 and B2O3
by Manas_Varma_4B
Sun Dec 09, 2018 2:27 pm
Forum: Bronsted Acids & Bases
Topic: Bronsted acid
Replies: 4
Views: 210

Re: Bronsted acid

It's a strong acid because it completely disassociates by losing its one proton, H+.
by Manas_Varma_4B
Sun Dec 09, 2018 2:25 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: sig figs
Replies: 4
Views: 81

Re: sig figs

I personally just round off to sig figs at the very end of the problem.
by Manas_Varma_4B
Sun Dec 09, 2018 2:24 pm
Forum: Conjugate Acids & Bases
Topic: Stability of Conjugate Base
Replies: 6
Views: 271

Re: Stability of Conjugate Base

Usually, if the conjugate base is more stable, the resulting acid will be stronger.
by Manas_Varma_4B
Sun Dec 09, 2018 2:23 pm
Forum: Air Pollution & Acid Rain
Topic: Acid Rain Formation
Replies: 6
Views: 213

Re: Acid Rain Formation

Compounds such as sulfur dioxide and nitrogen oxides mix with water in the atmosphere to form acids, which eventually have the capability to harm the soil and hence the flora.
by Manas_Varma_4B
Sun Dec 09, 2018 2:21 pm
Forum: Bronsted Acids & Bases
Topic: Lewis vs Bronsted
Replies: 10
Views: 298

Re: Lewis vs Bronsted

Bronsted acids donate protons, and bronsted bases accept protons; while Lewis acids accept electrons, and Lewis bases donate electrons.
by Manas_Varma_4B
Sun Dec 09, 2018 2:19 pm
Forum: Polyprotic Acids & Bases
Topic: Polyprotic Question!
Replies: 8
Views: 648

Re: Polyprotic Question!

If a compound is polyprotic then it means that it can lose more than one proton. So it'll probably have something like "Hsub2"
by Manas_Varma_4B
Sun Dec 09, 2018 2:18 pm
Forum: Amphoteric Compounds
Topic: Amphiprotic vs Amphoteric
Replies: 5
Views: 182

Re: Amphiprotic vs Amphoteric

Amphiprotic means that the compound can both accept and donate electrons; while amphoteric means that the compounds can react as both acids and bases.
by Manas_Varma_4B
Sun Dec 09, 2018 2:15 pm
Forum: Dipole Moments
Topic: London Dispersion
Replies: 5
Views: 272

Re: London Dispersion

In the case of a bigger atom, there are more electrons so the greater area can mean that London Forces are stronger than Dipole-Dipole
by Manas_Varma_4B
Sun Dec 09, 2018 2:09 pm
Forum: Lewis Structures
Topic: Lewis Acids & Bases
Replies: 3
Views: 157

Re: Lewis Acids & Bases

Lewis acids accept pairs of electrons, while Lewis bases donate pairs of electrons.
by Manas_Varma_4B
Sun Dec 09, 2018 2:07 pm
Forum: Sigma & Pi Bonds
Topic: Why are sigma bonds stronger than pi bonds?
Replies: 10
Views: 297

Re: Why are sigma bonds stronger than pi bonds?

Sigma bonds overlap head to head, as opposed to pi bonds that overlap through the sides of p orbitals.
by Manas_Varma_4B
Sun Dec 09, 2018 2:06 pm
Forum: Ionic & Covalent Bonds
Topic: ionic and covalent bonds
Replies: 5
Views: 176

Re: ionic and covalent bonds

Yeah, they both do. Highest values are at Flourine.
by Manas_Varma_4B
Sun Dec 09, 2018 2:04 pm
Forum: Biological Examples
Topic: Cisplatin
Replies: 3
Views: 168

Cisplatin

How do you draw it?
by Manas_Varma_4B
Sat Dec 08, 2018 10:08 pm
Forum: Identifying Acidic & Basic Salts
Topic: Weak bases and weak acids
Replies: 1
Views: 128

Weak bases and weak acids

why do salts of weak bases produce acidic solutions and salts of weak acids produce basic
solutions?
by Manas_Varma_4B
Sat Dec 08, 2018 9:56 pm
Forum: Biological Examples
Topic: Myoglobin, Hemoglobin, and Heme Complex
Replies: 2
Views: 118

Myoglobin, Hemoglobin, and Heme Complex

What specifically do we need to know about these coordination compounds?
by Manas_Varma_4B
Sat Dec 08, 2018 9:46 pm
Forum: Naming
Topic: Do we need to know the ligand (en)?
Replies: 2
Views: 76

Do we need to know the ligand (en)?

Do we need to be able to write out the whole ligand, or is putting (en) sufficient?
by Manas_Varma_4B
Sat Dec 08, 2018 6:17 pm
Forum: Biological Examples
Topic: Chemotherapy Drugs
Replies: 1
Views: 99

Chemotherapy Drugs

What are the well-known examples of coordination compounds used as chemotherapy drugs that we need to know?
by Manas_Varma_4B
Sat Dec 08, 2018 4:08 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Calculating pH and the pOH
Replies: 2
Views: 59

Calculating pH and the pOH

If given the amount of hydronium ion in a solution, how would you find pOH?
by Manas_Varma_4B
Fri Dec 07, 2018 10:12 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Regarding the final
Replies: 2
Views: 86

Re: Regarding the final

This is what his outline says to know: Identify common drinks, foods, and household items as acidic or basic. • Describe chemical properties of acids, bases and amphoteric compounds. • Draw the structures of acids, bases and amphoteric compounds. • Recognize acids and bases from their formulas and/o...
by Manas_Varma_4B
Fri Dec 07, 2018 10:05 pm
Forum: Significant Figures
Topic: Calculators
Replies: 16
Views: 499

Re: Calculators

I have a TI-30x and it works really well.
by Manas_Varma_4B
Thu Nov 01, 2018 12:58 pm
Forum: Trends in The Periodic Table
Topic: Implications of ionization energy
Replies: 2
Views: 54

Re: Implications of ionization energy

The atoms with a lower ionization energy have a greater ability to bond with other atoms since they have more "open spots" to form an octet. Because of this, the atom with more spots to bond goes in the middle and the ones with less go on the outside (for example Hydrogen).
by Manas_Varma_4B
Thu Nov 01, 2018 12:52 pm
Forum: Resonance Structures
Topic: Resonance
Replies: 8
Views: 188

Re: Resonance

The resonance structures themselves don't actually exist in real life, but that's how we are able to model what the structure of the molecule actually looks like, which is an average of all the resonance structures.
by Manas_Varma_4B
Sun Oct 14, 2018 11:00 pm
Forum: Properties of Light
Topic: 6th edition homework 1.13 Rydberg Formula
Replies: 1
Views: 39

Re: 6th edition homework 1.13 Rydberg Formula

The Rydberg formula is E(n)= -[(h)(R)]/n^2

However to calculate the change in energy, you must also do E(final) - E(initial).
by Manas_Varma_4B
Mon Oct 08, 2018 9:58 pm
Forum: Einstein Equation
Topic: Einstein's Equation: E=hv
Replies: 11
Views: 296

Re: Einstein's Equation: E=hv

Planck's constant, defined as 6.63*10^-34 Joule*seconds
by Manas_Varma_4B
Mon Oct 08, 2018 9:53 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect
Replies: 6
Views: 71

Re: Photoelectric Effect

That represents the kinetic energy of the electron after it is ejected from the surface of the metal. The m(e-) is the mass of the electron and v(e-) represents the velocity of the electron when it is ejected.
by Manas_Varma_4B
Sun Oct 07, 2018 3:48 pm
Forum: Significant Figures
Topic: Sig Figs & Molar Mass
Replies: 4
Views: 90

Re: Sig Figs & Molar Mass

I'm not sure exactly what you're supposed to do, but when I calculate molar mass I go to the amount of sig figs in other numbers given in the problem.
by Manas_Varma_4B
Thu Oct 04, 2018 5:50 pm
Forum: Empirical & Molecular Formulas
Topic: Converting from mole ratios to empirical formula
Replies: 2
Views: 80

Re: Converting from mole ratios to empirical formula

You want the numbers that are decimals to be as close as possible to a whole number. In this case: 2.67 x 1 = 2.67 (not close to a whole number) 2.67 x 2 = 5.34 (not close to a whole number) 2.67 x 3 = 8.01 (close to a whole number) So if you multiply all the mole numbers by 3, you get 3 oxygen, 8 h...

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