Search found 16 matches

by Jennah Muhammad 1H
Sun Oct 29, 2017 11:15 pm
Forum: DeBroglie Equation
Topic: units for mass
Replies: 6
Views: 517

Re: units for mass

what are the unit conversions for kilojoules (K.J) in meters per second?
by Jennah Muhammad 1H
Sun Oct 29, 2017 11:13 pm
Forum: Photoelectric Effect
Topic: Velocity
Replies: 2
Views: 240

Velocity

When you are looking for velocity in a problem which problem would you use since I know none of them specifically include velocity?
by Jennah Muhammad 1H
Sun Oct 15, 2017 11:17 pm
Forum: Empirical & Molecular Formulas
Topic: Theoretical yield [ENDORSED]
Replies: 1
Views: 237

Theoretical yield [ENDORSED]

After finding the empirical formula the module stops, so how do I get from the empirical formula to the theoretical yield in order to find the actual yield?
by Jennah Muhammad 1H
Sun Oct 15, 2017 11:15 pm
Forum: Significant Figures
Topic: no Sig Figs in question [ENDORSED]
Replies: 4
Views: 529

no Sig Figs in question [ENDORSED]

If the question has no numerical values present, would you use the significant figures of the constants we should use or what should you do?
by Jennah Muhammad 1H
Sun Oct 08, 2017 6:58 pm
Forum: Empirical & Molecular Formulas
Topic: F.23 Question [ENDORSED]
Replies: 5
Views: 574

Re: F.23 Question [ENDORSED]

say a problem asked you to find the mass percentage composition and another problem asked you to find the moles of a certain mass. would the process ultimately be the same? You just multiply by 100 when finding the percent composition
by Jennah Muhammad 1H
Sun Oct 08, 2017 6:34 pm
Forum: Molarity, Solutions, Dilutions
Topic: Molarity and Dilution [ENDORSED]
Replies: 7
Views: 1388

Re: Molarity and Dilution [ENDORSED]

I have a hard time identifying what is what in wordy questions. For instance I often mix up what is the Molarity, number of moles of solute, or the volume. And I have a hard time with excluding unnecessary givens in the equation. Does anyone have any advice?
by Jennah Muhammad 1H
Sun Jul 09, 2017 10:38 pm
Forum: Lewis Structures
Topic: Determining Lewis structures
Replies: 4
Views: 640

Re: Determining Lewis structures

when drawing a lewis structure how do you determine where to place the lone pair if there is one
by Jennah Muhammad 1H
Sun Jul 09, 2017 10:36 pm
Forum: Resonance Structures
Topic: Resonance vs. Lewis Structure?
Replies: 9
Views: 1232

Re: Resonance vs. Lewis Structure?

I'm always confused on how to draw the different resonance structures.. does it matter how you move the double bonds around if it has the same arrangements of atoms
by Jennah Muhammad 1H
Sun Jul 09, 2017 10:32 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration for Fe 3+
Replies: 6
Views: 37325

Re: Electron Configuration for Fe 3+

on exams will we be required to find the ground state electron configuration using the noble gas notation? or will it require us to just write the general electron configuration
by Jennah Muhammad 1H
Sun Jul 09, 2017 10:24 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: orbitals an shells [ENDORSED]
Replies: 5
Views: 599

orbitals an shells [ENDORSED]

Can someone pease clarify the relationship between shells and orbitals?
by Jennah Muhammad 1H
Sun Jul 02, 2017 10:51 pm
Forum: Balancing Chemical Reactions
Topic: Order of steps
Replies: 6
Views: 661

Re: Order of steps

Start with the element that occurs the least
by Jennah Muhammad 1H
Sun Jul 02, 2017 10:42 pm
Forum: Properties of Light
Topic: Amplitude versus wavelength
Replies: 4
Views: 408

Re: Amplitude versus wavelength

when it comes to light, why is amplitude not proportional to energy?
by Jennah Muhammad 1H
Sun Jul 02, 2017 10:27 pm
Forum: DeBroglie Equation
Topic: verified/detected wavelengths
Replies: 2
Views: 406

verified/detected wavelengths

a wavelength is hard to detect when smaller than 10^-10 correct? Why this specific value and what the reasoning behind it?
by Jennah Muhammad 1H
Sun Jul 02, 2017 10:13 pm
Forum: SI Units, Unit Conversions
Topic: Molar Mass
Replies: 7
Views: 985

Re: Molar Mass

from what I know the molecular weight and molar mass have the same numbers but have different units. The molecular weight is in amu and the molar mass is in grams per mole...im not sure how to explain in detail the reasoning behind this, I hope someone else is able to.
by Jennah Muhammad 1H
Sun Jul 02, 2017 9:57 pm
Forum: SI Units, Unit Conversions
Topic: Exercise E1 [ENDORSED]
Replies: 6
Views: 935

Re: Exercise E1 [ENDORSED]

I was a bit confused on this question as well (Im really rusty when it comes to chem)...how do you know to multiply by 2? when its not specified in the problem
by Jennah Muhammad 1H
Sun Oct 02, 2016 9:06 pm
Forum: Molarity, Solutions, Dilutions
Topic: Homework problem Fundamentals E.15
Replies: 3
Views: 423

Homework problem Fundamentals E.15

Im sure I am very rusty with Chemistry. The question is asking for the molar mass of the sulfide of the metal hydroxide and I am not understanding how to even go about the problem. Please explain...

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