## Search found 114 matches

Sun Oct 20, 2019 4:16 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Series
Replies: 3
Views: 46

### Series

Can someone explain what the balmer, lyman, paschen, and brackett series are?
Sun Oct 20, 2019 1:56 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Short Hand
Replies: 11
Views: 93

### Re: Short Hand

Refer to the previous noble gas and put the name of that in brackets and then continue to write the configuration. Basically we just act as if the noble gas in the brackets acts as the configuration for the noble gas, so we would continue writing configuration as if we wrote the configuration up til...
Sun Oct 20, 2019 1:53 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Ordering of s and d orbitals
Replies: 4
Views: 55

### Re: Ordering of s and d orbitals

In what situation could we order the 4s orbital before the 3d? (just for my own knowledge because I know that we should order the 3d before the 4s in this class)
Sun Oct 13, 2019 5:46 pm
Forum: Properties of Light
Topic: 'light intensity'
Replies: 8
Views: 73

### Re: 'light intensity'

What exactly is the relationship between frequency and black bodies?
Sun Oct 13, 2019 5:38 pm
Forum: Quantum Numbers and The H-Atom
Topic: Energy quantized?
Replies: 5
Views: 53

### Re: Energy quantized?

What happens to the extra energy if the energy of a photon is greater than the energy needed to remove an electron?
Sun Oct 13, 2019 5:32 pm
Forum: Properties of Electrons
Topic: Equations for electrons
Replies: 4
Views: 28

### Re: Equations for electrons

Can someone link a video or website that explains the wave-particle duality of light?
Sun Oct 13, 2019 12:23 pm
Forum: Photoelectric Effect
Topic: Intensity, frequency, and wavelength
Replies: 5
Views: 59

### Re: Intensity, frequency, and wavelength

The number of photons and intensity are proportional, so I think that if the intensity increases, the number of photons will increase as well.
Wed Oct 09, 2019 12:09 pm
Forum: General Science Questions
Topic: Percentage Yield HW Question
Replies: 1
Views: 35

### Re: Percentage Yield HW Question

Since the actual yield depends on the limiting reactant (in this case, the ammonia), we do not need to know the amount of excess reactant (the hypochlorite). First, find how many moles of ammonia are present in 35 grams. Use that to find the proportional amount of hydrazine that should be produced. ...
Thu Oct 03, 2019 6:30 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Actual Yield vs Theoretical Yield
Replies: 6
Views: 71

### Actual Yield vs Theoretical Yield

What are some reasons for the actual yield differing from the theoretical yield?
Thu Oct 03, 2019 6:19 pm
Forum: Balancing Chemical Reactions
Topic: Understanding how to get whole #s [ENDORSED]
Replies: 18
Views: 204

### Re: Understanding how to get whole #s[ENDORSED]

If you are solving from grams to mols, you can leave the number as is (2.44 mols is fine, you do not have to round). Hope this helps!
Thu Oct 03, 2019 6:13 pm
Forum: Limiting Reactant Calculations
Topic: 2 Limiting Reagents
Replies: 5
Views: 63

### Re: 2 Limiting Reagents

It's also important to remember that even though the amounts of the reactants may be the same, we have to compare how many moles of each reactant are present, not the actual masses of the reactants.
Thu Oct 03, 2019 6:09 pm
Forum: Significant Figures
Topic: Sig Figs
Replies: 6
Views: 117

### Re: Sig Figs

How do we know how many sig figs our final answers should have?
Wed Oct 02, 2019 3:06 pm
Forum: Balancing Chemical Reactions
Topic: States of Matter in a Chemical Equation [ENDORSED]
Replies: 11
Views: 131

### Re: States of Matter in a Chemical Equation[ENDORSED]

Also, what are all the shorthand notations for the states of matter? (ex: for solids, it is (s))
Tue Oct 01, 2019 2:18 pm
Forum: Balancing Chemical Reactions
Topic: States of Matter in a Chemical Equation [ENDORSED]
Replies: 11
Views: 131

### States of Matter in a Chemical Equation[ENDORSED]

When writing out chemical equations, should we always include the states of matter of each of the reactants and products?

Go to advanced search