Search found 27 matches

by Anthony Mercado 1K
Sun Jun 10, 2018 8:53 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Acid Strength
Replies: 5
Views: 324

Re: Acid Strength

In addition, to find which compound has more basic strength, basicity, would you also have to compare conjugate acids? *That is, discovering the conjugate acid of the basic compound, ranking those on acidity, and then reversing the order ranked to find the most/least basic?
by Anthony Mercado 1K
Sun Jun 10, 2018 8:47 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: ethylenediaminetetraacetato (edta)
Replies: 6
Views: 144

Re: ethylenediaminetetraacetato (edta)

What is the critical importance of edta? *I have been hearing this term a lot recently, and I was wondering if someone could explain the composition of edta, and the properties it has
by Anthony Mercado 1K
Sun Jun 10, 2018 8:44 pm
Forum: Naming
Topic: Coordination number
Replies: 10
Views: 281

Re: Coordination number

While I understand that the coordination number denotes the number of ligands attached to a central atom, what importance does this serve to discover any further aspects of the molecule involved?
by Anthony Mercado 1K
Sun Jun 03, 2018 9:12 pm
Forum: Hybridization
Topic: basics of hybridization
Replies: 18
Views: 459

Re: basics of hybridization

In conjunction with hybridization, I am confused as to why we denote elements molecules with notation such as sp^2, on the basis of its lone pair & type of bond it shares? What does this notation serve to inform viewers of, other than clutter up a Lewis drawing with more information?
by Anthony Mercado 1K
Sun Jun 03, 2018 9:07 pm
Forum: Hybridization
Topic: Differences Between Pi and Sigma bonds
Replies: 7
Views: 150

Re: Differences Between Pi and Sigma bonds

So, in relation to sigma and pie bonds, does each increase in bond length constrain the molecule on an increasing number of axis(s)? That is, a sigma bond just constrains it on an axis, a pi bond would not allow it to rotate, and a triple bond would mean even more constraints in molecular movement?
by Anthony Mercado 1K
Sun Jun 03, 2018 9:03 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Naming Structures
Replies: 8
Views: 166

Re: Naming Structures

Also, just to be clear, when asked to name the VSEPR shape of a molecule, that would not be the same as asking to name the molecular shape of a molecule? *This would revolve around not counting in the lone pairs for the molecular shape. Also, which one of these two are we most likely to be asked to ...
by Anthony Mercado 1K
Sun May 27, 2018 9:27 pm
Forum: Octet Exceptions
Topic: expanded octets
Replies: 5
Views: 195

Re: expanded octets

In the construction of Lewis models, is the rule for expanded octets as follows: If it is on period (3) of the periodic table or lower, it will be able to handle an expanded octet? *Does this follow for all elements on period (3) of the periodic table?
by Anthony Mercado 1K
Sun May 27, 2018 9:23 pm
Forum: Bond Lengths & Energies
Topic: Test 3 bond length question
Replies: 8
Views: 275

Re: Test 3 bond length question

Additionally, part of the question was a comparison of two double bonds, each with two lone pairs. In this scenario, how would you discover which of the two bond lengths was longer? * Also, is it correct in thinking the lone pairs stretch out the bond length?
by Anthony Mercado 1K
Sun May 27, 2018 9:20 pm
Forum: Sigma & Pi Bonds
Topic: Sigma and pi
Replies: 12
Views: 508

Re: Sigma and pi

If every double bond is one sigma and one pie bond, why not simply denote double bonds as such since the beginning? Or is this statement not reversible, in which a sigma and pie bond together do not always make a double bond?
by Anthony Mercado 1K
Sun May 20, 2018 10:35 pm
Forum: Bond Lengths & Energies
Topic: Double Bond vs Triple Bond
Replies: 7
Views: 554

Re: Double Bond vs Triple Bond

In reference to the construction of double/triple bonds in Lewis structures, will it be acceptable to make quadruple bonds within compounds? *I believe Dr. Lavelle briefly talked about this during lecture
by Anthony Mercado 1K
Sun May 20, 2018 10:25 pm
Forum: Electronegativity
Topic: Isoelectronic [ENDORSED]
Replies: 11
Views: 458

Re: Isoelectronic [ENDORSED]

In the scenario of two elements being isoelectronic, why wouldn't the element gaining or losing electrons entirely become the other element it's isoelectronic to? Ie. Why wouldn't F- just become Ne?
by Anthony Mercado 1K
Sun May 20, 2018 10:22 pm
Forum: Bond Lengths & Energies
Topic: Bond Strength
Replies: 5
Views: 341

Re: Bond Strength

Why do we even classify compounds with bonds lengths and strengths? I was led to believe that these are never a true depiction of such, in relation to concepts such as the average bond length of resonance structures
by Anthony Mercado 1K
Sun May 13, 2018 7:26 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Most Favorable Formal Charge
Replies: 5
Views: 331

Re: Most Favorable Formal Charge

Would it ever be possible for an element with a radical electron, in a compound, to have a formal charge of zero? As well, is there a lowest amount of elements in a compound where it is unnecessary to calculate formal charge?
by Anthony Mercado 1K
Sun May 13, 2018 7:11 pm
Forum: Resonance Structures
Topic: Resonance Structures
Replies: 5
Views: 135

Re: Resonance Structures

Would it also be applicable to just state the average length, in Angstrom units, of the bond lengths, in a scenario of possibly interchangeable single and double bonds? * Or would this poorly depict the image of resonance structures?
by Anthony Mercado 1K
Sun May 13, 2018 7:07 pm
Forum: Octet Exceptions
Topic: Radical Confusion
Replies: 3
Views: 172

Re: Radical Confusion

How is it that radical structures even appear? I would assume that the octet rule is the final test for determining if a compound is really able to exist. That being said, is it that radical electrons appear solely in nature or are they man-made?
by Anthony Mercado 1K
Tue Apr 24, 2018 11:36 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: d and s blocks
Replies: 16
Views: 573

Re: d and s blocks

Why is there no energy level after the f block? By having energy levels end at the f block, what is this representative of?
by Anthony Mercado 1K
Tue Apr 24, 2018 11:34 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Radial Nodes/Planes
Replies: 2
Views: 151

Re: Radial Nodes/Planes

What is the reasoning behind, for one to remember, no electrons being found in the radial node in correlation with it having no density?
by Anthony Mercado 1K
Tue Apr 24, 2018 11:31 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Lobes [ENDORSED]
Replies: 4
Views: 163

Re: Lobes [ENDORSED]

Do the lobes of an orbital dictate the exact location of where an electron may appear, or the general area of where it can be found?
by Anthony Mercado 1K
Thu Apr 19, 2018 7:00 pm
Forum: Properties of Light
Topic: units for frequency and wavelength [ENDORSED]
Replies: 9
Views: 192

Re: units for frequency and wavelength [ENDORSED]

Would a typical question ask one to find both the frequency and the wavelength, and if so, what order would they need to found in?
by Anthony Mercado 1K
Thu Apr 19, 2018 6:56 pm
Forum: Properties of Light
Topic: still don't uderrsatnd what a photon is [ENDORSED]
Replies: 20
Views: 362

Re: still don't uderrsatnd what a photon is [ENDORSED]

Are photons comparative to electrons in some sense, and could we think of them similar to atoms in some ways?
by Anthony Mercado 1K
Thu Apr 19, 2018 6:54 pm
Forum: Properties of Electrons
Topic: Diffraction meaning
Replies: 6
Views: 172

Re: Diffraction meaning

Are there any cases as to which a wave would be acting neither constructively or destructively, in some other alternate format?
by Anthony Mercado 1K
Sun Apr 15, 2018 5:38 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Which mass of oxygen should be used? [ENDORSED]
Replies: 23
Views: 806

Re: Which mass of oxygen should be used? [ENDORSED]

That being said, will utilizing 15.99 grams/mole or 16 grams/mole entail that the TA(s) or test grader understands the differences in sig figs the end answer will hold because of these varying numbers/computations?
by Anthony Mercado 1K
Sun Apr 15, 2018 5:32 pm
Forum: Empirical & Molecular Formulas
Topic: Finding the molecular formula [ENDORSED]
Replies: 5
Views: 153

Re: Finding the molecular formula [ENDORSED]

If the molar masses for both the empirical and molecular formula are the same, does this conclude with being able to find the molecular formula from the start of the problem, bypassing calculations for the empirical formula?
by Anthony Mercado 1K
Sun Apr 15, 2018 5:28 pm
Forum: Empirical & Molecular Formulas
Topic: Compound Order
Replies: 5
Views: 156

Re: Compound Order

Additionally, and this may be overcomplicating matters, how would one expect to organize elements if they are made up of two letters, such as Cr - Chromium, or if one element, out of the ones in the compound has the largest number of atoms?
by Anthony Mercado 1K
Sun Apr 15, 2018 5:20 pm
Forum: Empirical & Molecular Formulas
Topic: Molecular to Empirical [ENDORSED]
Replies: 12
Views: 365

Re: Molecular to Empirical [ENDORSED]

In a typical "finding the molecular formula problem," is there a way to discover the molecular formula before the empirical formula, in order to save critical time during an examination?
by Anthony Mercado 1K
Sun Apr 15, 2018 5:15 pm
Forum: Empirical & Molecular Formulas
Topic: Empirical and Molecular Formulas [ENDORSED]
Replies: 4
Views: 131

Re: Empirical and Molecular Formulas [ENDORSED]

So, in terms of the molecular and empirical formulas being the same, when no simplification can be done, how can we be aware of this occurring in a problem (ie. knowing beforehand if they'll be the same or not) without a diagram?
by Anthony Mercado 1K
Sun Apr 15, 2018 5:09 pm
Forum: Empirical & Molecular Formulas
Topic: F.21
Replies: 5
Views: 714

Re: F.21

As an inquiry into discovering the molecular formula of didemnin-A, in the primary steps towards conversion would one have to convert mg units to g towards the end or beginning of calculations? * Would these affect the number of sig figs due to constant conversions?

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