## Search found 108 matches

Mon Oct 15, 2018 4:10 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Delta X
Replies: 4
Views: 359

### Re: Delta X

You plug in the diameter. In the same way +/-3 gives you six, +/- the radius gives you the diameter (you multiply by 2).
Mon Oct 15, 2018 1:35 pm
Forum: Properties of Light
Topic: Measurable wavelength
Replies: 2
Views: 123

### Measurable wavelength

What is the cutoff for a wavelength to be measurable?
Mon Oct 08, 2018 9:28 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect
Replies: 6
Views: 189

### Re: Photoelectric Effect

That's the formula for kinetic energy, which results from excess energy generated by the light.
Mon Oct 08, 2018 9:20 pm
Forum: Properties of Light
Topic: Wavelength vs Frequency
Replies: 7
Views: 252

### Re: Wavelength vs Frequency

Wavelength is a measure of distance between peaks of a wave (Dr. Lavelle drew a diagram of this in class), while frequency is a measure of the rate at which wavelengths occur.
Mon Oct 08, 2018 6:20 pm
Forum: Photoelectric Effect
Topic: work function
Replies: 4
Views: 216

### work function

What is the work function? For example, in the equation E = hv + work function.
Thu Oct 04, 2018 7:00 pm
Forum: Limiting Reactant Calculations
Topic: Limiting reactants [ENDORSED]
Replies: 3
Views: 157

### Limiting reactants[ENDORSED]

If a problem gives the grams of only one reactant, is it safe to assume that reactant is the limiting reactant? If so, why?
Thu Oct 04, 2018 6:54 pm
Forum: Limiting Reactant Calculations
Topic: multiple limiting reactants
Replies: 9
Views: 394

### Re: multiple limiting reactants

I believe that it's not possible because thinking logically, if there were two limiting reactants, they would have the exact same molar ratio. If this were true, then neither reactant would limit the other - they would both be completely consumed in the reaction.
Thu Oct 04, 2018 6:42 pm
Forum: Limiting Reactant Calculations
Topic: Limiting reactant [ENDORSED]
Replies: 2
Views: 117

### Re: Limiting reactant[ENDORSED]

We are looking to compare the amount/number of atoms in each of the reactants, not how much all of the atoms weigh together. This is why we need to convert to moles. Looking at just grams would be inaccurate because atoms of different elements differ in their atomic mass. If the grams of reactant 1 ...