Search found 22 matches

by Abigail Volk 3
Wed Dec 06, 2017 12:24 am
Forum: Naming
Topic: 17.40 [ENDORSED]
Replies: 1
Views: 23

17.40 [ENDORSED]

what is a structural isomerism? and how do you find it in this compound - [Cr(en)3][Co(ox)3]
by Abigail Volk 3
Tue Dec 05, 2017 11:56 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4.5
Replies: 1
Views: 25

4.5

The questions says, "what is the shape of the ClO2+ ion? what is the expected OClO bond angle?" I'm still slightly confused on how to determine bond angles. Can you use the example in the question to explain how to determine the bond angle? thanks
by Abigail Volk 3
Tue Dec 05, 2017 11:42 pm
Forum: Ionic & Covalent Bonds
Topic: 3.29
Replies: 2
Views: 28

3.29

In this homework problem it asks us to predict which of the following pairs of ions would have the greatest coulombic attraction in a solid compound: a) K+,O-
b) Ga3+, O2- c) Ca2+, O2-
what is a coulombic attraction, and how do you find it in this question?
by Abigail Volk 3
Tue Dec 05, 2017 11:35 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: 12.23 [ENDORSED]
Replies: 7
Views: 95

12.23 [ENDORSED]

The question asks, " The value of Kw for water at body temperature (37 degrees Celcius) is 2.1x10^-14. what is the molarity of H3O+ ions and the pH of neutral water at 37 degrees Celcius? what is the molarity of OH- in neutral water at 37 degrees Celcius? I'm having a hard time understanding th...
by Abigail Volk 3
Tue Dec 05, 2017 11:19 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 11.9
Replies: 2
Views: 25

11.9

The question states, "balance the following equations using the smallest whole number coefficients, then write the equilibrium expression Kc for each reaction:". what is it asking for when it asks to use the smallest whole number? And an example given was a) CH4(g) + Cl2(g) <=> CHCl3(g) + ...
by Abigail Volk 3
Sat Dec 02, 2017 1:38 pm
Forum: Administrative Questions and Class Announcements
Topic: chemistry community posts [ENDORSED]
Replies: 1
Views: 53

chemistry community posts [ENDORSED]

how can I check how many times I've posted? I want to make sure I can get all my points for posting but I'm not sure where to go to find it. Thanks!
by Abigail Volk 3
Sat Dec 02, 2017 1:32 pm
Forum: Naming
Topic: Naming with prefixes [ENDORSED]
Replies: 1
Views: 29

Naming with prefixes [ENDORSED]

how do you know which prefix to use? For example, di or bis, tri or tris, tetra or tetrakis.
by Abigail Volk 3
Sat Dec 02, 2017 1:29 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Gases [ENDORSED]
Replies: 3
Views: 45

Gases [ENDORSED]

How do you know when a gas is ideal?
by Abigail Volk 3
Sun Nov 26, 2017 10:58 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Chemical Equilibrium
Replies: 3
Views: 24

Chemical Equilibrium

By watching the modules posted by Dr. Lavelle, will we be able to get all the information needed for chapter 11 in preparation for test #4?
by Abigail Volk 3
Sun Nov 26, 2017 10:56 am
Forum: Student Social/Study Group
Topic: Chapter 17
Replies: 1
Views: 35

Chapter 17

What do we specifically need to know from chapter 17 for the test? I wasn't in class on Wednesday so maybe I missed some of that information. Thank you!
by Abigail Volk 3
Fri Nov 10, 2017 4:26 pm
Forum: Lewis Structures
Topic: Lewis acids and bases [ENDORSED]
Replies: 3
Views: 41

Lewis acids and bases [ENDORSED]

whats the definition of a lewis acid and lewis base? Doesn't one of them give up an electron and the other absorb one?
by Abigail Volk 3
Fri Nov 10, 2017 4:22 pm
Forum: Dipole Moments
Topic: Midterm [ENDORSED]
Replies: 5
Views: 148

Re: Midterm [ENDORSED]

Does anyone know when we will be getting our scores back from the midterm?
by Abigail Volk 3
Thu Nov 02, 2017 9:52 pm
Forum: Bond Lengths & Energies
Topic: Bond Order
Replies: 5
Views: 66

Bond Order

how do you find the bond order? why is the bond order in H2 equal to 1?
by Abigail Volk 3
Thu Nov 02, 2017 9:49 pm
Forum: Ionic & Covalent Bonds
Topic: Metallic Bond
Replies: 4
Views: 54

Metallic Bond

Do we need to know this and if so what is a metallic bond or what does it do?
by Abigail Volk 3
Wed Oct 25, 2017 4:30 pm
Forum: Lewis Structures
Topic: Coulomb Potential Energy
Replies: 2
Views: 37

Coulomb Potential Energy

Can someone explain the Coulomb potential energy formula?
by Abigail Volk 3
Wed Oct 25, 2017 3:48 pm
Forum: Lewis Structures
Topic: Double or single bonds
Replies: 4
Views: 67

Double or single bonds

How do you determine whether a Lewis structure has a single or double bond?
by Abigail Volk 3
Wed Oct 18, 2017 2:45 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 5271
Views: 508726

Re: Post All Chemistry Jokes Here

I am out of chemistry jokes, I should zinc of a new one.
by Abigail Volk 3
Wed Oct 18, 2017 2:42 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 5271
Views: 508726

Re: Post All Chemistry Jokes Here

Do you have 11 protons?
Because you are sodium fine ;)
by Abigail Volk 3
Wed Oct 18, 2017 2:39 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 5271
Views: 508726

Re: Post All Chemistry Jokes Here

"oh my gosh, I've lost a neutron"
"Don't worry; you can get a new one "free of charge."
by Abigail Volk 3
Mon Oct 09, 2017 10:46 pm
Forum: Properties of Light
Topic: Chapter 1 Question 9
Replies: 4
Views: 113

Chapter 1 Question 9

In the table, what conversion formula would we use to find wave length and energy of photon from the frequency 8.7x10^14 Hz?
by Abigail Volk 3
Sat Oct 07, 2017 10:45 am
Forum: Balancing Chemical Reactions
Topic: Balancing Chemical Equations [ENDORSED]
Replies: 2
Views: 72

Balancing Chemical Equations [ENDORSED]

When trying to balance a chemical equation and it includes a triangle (delta) symbol, does that affect how I balance the equation?
by Abigail Volk 3
Sat Oct 07, 2017 10:37 am
Forum: Limiting Reactant Calculations
Topic: Finding Excess Reactant [ENDORSED]
Replies: 2
Views: 59

Finding Excess Reactant [ENDORSED]

How do you find the excess reactant in an equation? How do you find a limiting reactant? Are both required in an equation?

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