Search found 23 matches

by Karan Singh Lecture 3
Fri Dec 08, 2017 1:02 pm
Forum: DeBroglie Equation
Topic: Concept of deBroglie
Replies: 3
Views: 200

Re: Concept of deBroglie

Its because light has no mass. Hopefully this helped.
by Karan Singh Lecture 3
Fri Dec 08, 2017 12:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Final exam [ENDORSED]
Replies: 7
Views: 494

Re: Final exam [ENDORSED]

I would definitely use fundamental J as a great study tool for the final.
by Karan Singh Lecture 3
Sat Dec 02, 2017 9:46 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Solids when using ICE [ENDORSED]
Replies: 8
Views: 538

Re: Solids when using ICE [ENDORSED]

We do not use solids and liquids in the ICE method.
by Karan Singh Lecture 3
Sat Dec 02, 2017 9:44 am
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Strong acid vs weak acid [ENDORSED]
Replies: 7
Views: 356

Re: Strong acid vs weak acid [ENDORSED]

A strong acid will completely ionize in solution, whereas a weak acid will not and it is actually reversible.
by Karan Singh Lecture 3
Fri Nov 24, 2017 12:14 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Partial Pressure or Concentration
Replies: 3
Views: 162

Re: Partial Pressure or Concentration

Yeah, I do not know the difference either. Can someone please explain.
by Karan Singh Lecture 3
Fri Nov 24, 2017 12:13 pm
Forum: Administrative Questions and Class Announcements
Topic: What is a passing grade? [ENDORSED]
Replies: 4
Views: 438

Re: What is a passing grade? [ENDORSED]

I believe it guarantees a C- and I am not sure about the curve.
by Karan Singh Lecture 3
Sat Nov 18, 2017 9:07 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bent or linear?
Replies: 11
Views: 700

Re: Bent or linear?

Yeah, I agree, if the central atom does not have any lone pairs, then it would be linear.
by Karan Singh Lecture 3
Sat Nov 18, 2017 9:01 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Lewis Structures and VSEPR Shape
Replies: 4
Views: 217

Re: Lewis Structures and VSEPR Shape

Yes, drawing out the lewis structure is great tool in determining the shape of the given molecule.
by Karan Singh Lecture 3
Sat Nov 11, 2017 9:24 pm
Forum: Empirical & Molecular Formulas
Topic: Practice Midterm Question
Replies: 4
Views: 293

Re: Practice Midterm Question

Is the molar mass of the substance given? If so you could multiply all the percentages by the total and then divide by the molar mass of each particular substance. That will get you the molecular formula. Hope this helps.
by Karan Singh Lecture 3
Sat Nov 11, 2017 9:21 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Shape Memorization [ENDORSED]
Replies: 7
Views: 456

Re: Shape Memorization [ENDORSED]

I agree the best way to memorize all of these different structures is to arrange the electrons by the total number of bonds in each geometry.
by Karan Singh Lecture 3
Sun Nov 05, 2017 4:29 pm
Forum: Trends in The Periodic Table
Topic: why carbon has a higher electron affinity than nitrogen.
Replies: 5
Views: 2959

Re: why carbon has a higher electron affinity than nitrogen.

Nitrogen is more stable than carbon, because it has a half-filled p sub-shell and carbon does not, thus making it less stable and having a higher electroon affinity.
by Karan Singh Lecture 3
Sun Nov 05, 2017 4:21 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: d and s blocks
Replies: 16
Views: 745

Re: d and s blocks

The d block is listed before the s block because it is more stable and represents the flow the of energy.
by Karan Singh Lecture 3
Sun Oct 29, 2017 2:10 am
Forum: Properties of Light
Topic: The uncertainty principle [ENDORSED]
Replies: 5
Views: 424

Re: The uncertainty principle [ENDORSED]

I agree with Ashin_Jose_1I the large particles tend to have no noticeable effect and with small particles, there is a huge uncertainty because its so small any little thing can have a huge impact on it.
by Karan Singh Lecture 3
Sun Oct 29, 2017 2:03 am
Forum: Significant Figures
Topic: no Sig Figs in question [ENDORSED]
Replies: 4
Views: 434

Re: no Sig Figs in question [ENDORSED]

I believe you would record how many ever sig figs your calculator can handle.
by Karan Singh Lecture 3
Sun Oct 22, 2017 8:29 pm
Forum: DeBroglie Equation
Topic: When to use De Broglie Equation [ENDORSED]
Replies: 11
Views: 1793

Re: When to use De Broglie Equation [ENDORSED]

Debroglie is used for electrons, so one can find their wavelength.
by Karan Singh Lecture 3
Fri Oct 20, 2017 10:37 pm
Forum: Einstein Equation
Topic: Chapter 1 #23
Replies: 6
Views: 495

Re: Chapter 1 #23

1.602*10^-19 is just a conversion factor in order to go from eV to joules.
by Karan Singh Lecture 3
Fri Oct 20, 2017 10:31 pm
Forum: Einstein Equation
Topic: Question about Ek
Replies: 3
Views: 254

Re: Question about Ek

The square only applies to the v. Hope this helps.
by Karan Singh Lecture 3
Sat Oct 14, 2017 10:14 am
Forum: Einstein Equation
Topic: Discussion Section Problem
Replies: 2
Views: 209

Re: Discussion Section Problem

I believe Julia is correct. We can simply plug the frequency in to the equation E=hv.
by Karan Singh Lecture 3
Sat Oct 14, 2017 10:10 am
Forum: Einstein Equation
Topic: Ek = 1/2 me v^2
Replies: 3
Views: 284

Re: Ek = 1/2 me v^2

In this equation, the mass of an electron will always be 9.109 x 10^-31 kg.
by Karan Singh Lecture 3
Sat Oct 14, 2017 10:07 am
Forum: Properties of Light
Topic: Balmer and Lyman Clarification [ENDORSED]
Replies: 3
Views: 175

Re: Balmer and Lyman Clarification [ENDORSED]

I believe that Balmer and Lyman series are specific to the hydrogen atom. Hope this helps.
by Karan Singh Lecture 3
Sat Oct 07, 2017 1:03 am
Forum: Balancing Chemical Reactions
Topic: Net Moles Produced [ENDORSED]
Replies: 5
Views: 505

Re: Net Moles Produced [ENDORSED]

All you do is count up the moles of the products and subtract by the moles of the reactants and that is your net moles.
by Karan Singh Lecture 3
Sat Oct 07, 2017 12:53 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Rounding Rule for 5
Replies: 5
Views: 448

Re: Rounding Rule for 5

This is done to avoid rounding errors, by telling everyone on how a number ending in a five should be rounded off to the closest even number. It makes calculations much more simple when everyone does round in the same manner.

Go to advanced search