Search found 18 matches

by Camille Ng 1D
Mon Dec 04, 2017 3:09 pm
Forum: Conjugate Acids & Bases
Topic: Strong vs Weak Acids/bases
Replies: 4
Views: 306

Re: Strong vs Weak Acids/bases

The main distinction is that strong acids/bases dissociate basically 100% in water so that you will not need to do a ICE table calculation. However, weak acids/bases require this calculation and you would need to find the amount of H30+ or OH- in the solution.
by Camille Ng 1D
Mon Dec 04, 2017 3:02 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Sig Figs for Calculating pH and pOH
Replies: 4
Views: 232

Re: Sig Figs for Calculating pH and pOH

Yes, just use the same amount of sig figs that are given in the question for your solution.
by Camille Ng 1D
Tue Nov 28, 2017 10:09 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: final yield question
Replies: 2
Views: 347

Re: final yield question

Taking out ammonia will create more ammonia because the system will try to compensate for the change (removal of ammonia) by creating more ammonia. Le Chat's principle states that the system will move in the direction to reduce the change in the reaction.
by Camille Ng 1D
Tue Nov 28, 2017 10:04 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Le Chateliers Principle
Replies: 3
Views: 176

Re: Le Chateliers Principle

The principle basically states that if a change is made in a system/reaction, the system will act to reduce that change. For example, if more reactant was added then the system will shift to make more products to reduce the change of more reactants.
by Camille Ng 1D
Tue Nov 21, 2017 2:57 pm
Forum: Naming
Topic: Ligand Names
Replies: 6
Views: 247

Re: Ligand Names

I'm not 100% sure, but I would memorize the most common ones out of that list or at least the ones that were used in HW problems that he assigned.
by Camille Ng 1D
Tue Nov 21, 2017 2:55 pm
Forum: Naming
Topic: Toolbox 17.1 from Chemistry Textbook
Replies: 2
Views: 98

Re: Toolbox 17.1 from Chemistry Textbook

Procedures A and B are just inverses of each other. I think we need to know both how to get to the formula from the name and how to get to the name from the formula.
by Camille Ng 1D
Thu Nov 16, 2017 5:34 pm
Forum: Hybridization
Topic: Hybridization and lone pairs
Replies: 2
Views: 192

Re: Hybridization and lone pairs

Lone pairs don't affect the hybridization of an atom. The number of election density regions does however so that's why H20 will have sp^3 hybridization regardless of its number of lone pairs.
by Camille Ng 1D
Thu Nov 16, 2017 5:32 pm
Forum: Hybridization
Topic: Hybrid orbitals
Replies: 4
Views: 250

Re: Hybrid orbitals

The formula basically explains that new hybrid orbitals are made of old atomic oribtials like s px, py, pz, etc. For example the sp^2 hybrid orbitals are made of one s orbital and two p orbitals (px and py orbitals)
by Camille Ng 1D
Mon Nov 06, 2017 6:06 pm
Forum: Lewis Structures
Topic: Are there any exceptions to carbon?
Replies: 3
Views: 182

Re: Are there any exceptions to carbon?

Carbon will be the central atom if it is the atom that has the lowest Ionization energy/electronegativity.
by Camille Ng 1D
Mon Nov 06, 2017 6:04 pm
Forum: Lewis Structures
Topic: Lone Pairs and H2O
Replies: 2
Views: 185

Re: Lone Pairs and H2O

It's bent and not linear because of the two lone pairs that push down onto the h atoms, creating a bent shape.
by Camille Ng 1D
Tue Oct 31, 2017 10:02 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Nodes
Replies: 4
Views: 315

Re: Nodes

Nodes are areas with no probability of an electron occupying the area. To calculate how many nodes there are you just need to do n-1.
by Camille Ng 1D
Tue Oct 31, 2017 9:59 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Wave functions
Replies: 2
Views: 184

Re: Wave functions

We definitely don't need to do any calculations but the chapter outline that Lavelle posted on his site says "Understand the relationship between Schrodinger's equation, wave functions, and orbitals, " so I would study that.
by Camille Ng 1D
Mon Oct 23, 2017 3:02 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Electron configuration
Replies: 4
Views: 196

Re: Electron configuration

You don't need to write that unless it specifically asks for it.
by Camille Ng 1D
Mon Oct 23, 2017 3:00 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: 3d, 4s orbital
Replies: 3
Views: 180

Re: 3d, 4s orbital

Simply, because the 3d has the n=3 energy level than n=4, in the 4s.
by Camille Ng 1D
Sat Oct 14, 2017 1:13 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect Doubt [ENDORSED]
Replies: 4
Views: 225

Re: Photoelectric Effect Doubt [ENDORSED]

The intensity means the number of photons, when talking about light in terms of waves. It's the equivalent of the amplitude in the particle model of light
by Camille Ng 1D
Sat Oct 14, 2017 1:11 pm
Forum: Properties of Light
Topic: Speed of Light Constant
Replies: 18
Views: 713

Re: Speed of Light Constant

Using either 3 or 2.998 on the homework doesn't really matter, just make sure you use the one that the constant sheet uses for the test.
by Camille Ng 1D
Thu Oct 05, 2017 3:27 pm
Forum: Balancing Chemical Reactions
Topic: Problem L35
Replies: 3
Views: 336

Re: Problem L35

You need to use all the stoichiometric coefficients in the various equations to finally get a mole relationship between the two. Without the coefficients in the equation, there is no way to tell the relationship of the two in the reaction.
by Camille Ng 1D
Thu Oct 05, 2017 3:22 pm
Forum: Balancing Chemical Reactions
Topic: Balancing Process
Replies: 11
Views: 479

Re: Balancing Process

There is no specific way/process to balance a chemical equation however you will find that balancing the element that appears the least is the easiest way to start and ending with the element that is shown the most. Many times Oxygen is the last element you balance since it shows up the most in many...

Go to advanced search