Search found 21 matches

by Amber_Candelaria_1D
Thu Mar 16, 2017 2:09 pm
Forum: *Cycloalkenes
Topic: Naming [ENDORSED]
Replies: 2
Views: 711

Re: Naming [ENDORSED]

Thank you!!
by Amber_Candelaria_1D
Thu Mar 16, 2017 12:27 am
Forum: *Cycloalkenes
Topic: Naming [ENDORSED]
Replies: 2
Views: 711

Naming [ENDORSED]

image1 (5).JPG

Hi, can someone help explain why they numbered it like this instead of how I numbered it?
by Amber_Candelaria_1D
Tue Mar 07, 2017 10:24 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1017991

Re: Post All Chemistry Jokes Here

I'm diene
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by Amber_Candelaria_1D
Tue Mar 07, 2017 10:13 pm
Forum: *Alkanes
Topic: Iso and Neo Prefixes
Replies: 5
Views: 548

Re: Iso and Neo Prefixes

The prefixes 'iso-' and 'neo-' are used for common naming instead of IUPAC naming; 'iso-' being used when there are 4 or less carbons, and 'neo-' when there are five or more. Common naming doesn't follow the rule of numbering the longest carbon chain, but instead counts all of the carbons. Using co...
by Amber_Candelaria_1D
Mon Feb 20, 2017 9:28 pm
Forum: Second Order Reactions
Topic: Determining rate constant
Replies: 1
Views: 224

Determining rate constant

The problem states:

"Determine the rate constant for second order equation 2A -> B + C given that the concentration of A decreases from 2.5 x 10-3 M to 1.25 x 10-3 M in 100.0 seconds."

How would you solve this?
by Amber_Candelaria_1D
Tue Nov 29, 2016 10:22 pm
Forum: Calculating the pH of Salt Solutions
Topic: Finding initial concentration given pH and Ka
Replies: 1
Views: 1583

Finding initial concentration given pH and Ka

The problem states: "Find the initial concentration of HClO with a pH of 4.60 (Ka = 3.0x 10^-8)." I understand you have to use an ICE table to solve for it but I'm not sure how to find the change in molarity with the info given? And after finding the change in molarity do I just solve for x?
by Amber_Candelaria_1D
Mon Nov 28, 2016 2:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 Prep Quiz #8
Replies: 1
Views: 305

Quiz 3 Prep Quiz #8

The question states: "The reaction N2(g) + O2(g) = 2NO (g) contributes to air pollution whenever a fuel is burned in air at a high temperature. At 1500 K, Kc = 1.0x10^-5. A sample of air is heated in a closed container to 1500 K. Before any reaction occurs [N2] = 0.80 M and [O2] = 0.20 M. Calcu...
by Amber_Candelaria_1D
Mon Nov 28, 2016 2:50 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1017991

Re: Post All Chemistry Jokes Here

What happens to nitrogen when the sun rises?

It becomes daytrogen.
by Amber_Candelaria_1D
Wed Nov 16, 2016 12:32 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1017991

Re: Post All Chemistry Jokes Here

You'd think that atoms bonding with other atoms would mean they're being friendly, but really they steal each other's electrons.

How ionic.
by Amber_Candelaria_1D
Thu Nov 10, 2016 12:04 am
Forum: Naming
Topic: Oxidation Number
Replies: 3
Views: 361

Re: Oxidation Number

The oxidation number is essentially the charge of the metal. So first you would need to calculate the charges of the other ligands in the complex and those charges plus the charges of the metal should add up to the total charge of the complex. For example, take [Fe(CN)5]2-, The charge of CN is 1-, ...
by Amber_Candelaria_1D
Wed Nov 09, 2016 11:26 pm
Forum: Naming
Topic: Oxidation Number
Replies: 3
Views: 361

Oxidation Number

How do you determine the oxidation number of transition metals?
by Amber_Candelaria_1D
Tue Nov 01, 2016 3:23 pm
Forum: Hybridization
Topic: s-character of hybrids
Replies: 1
Views: 283

Re: s-character of hybrids

Hi, this was answered in a previous post: "Answer: s-character is the contribution of sigma type bond in a hybridization: sp3 = 25% s-character, 75% p-character sp2 = 33% s-character, 66% p-character sp = 50% s-character, 50% p-character The more s-character a bond has, the stronger and shorter...
by Amber_Candelaria_1D
Mon Oct 31, 2016 11:54 am
Forum: Hybridization
Topic: Chapter 4- Question 43
Replies: 1
Views: 311

Re: Chapter 4- Question 43

Hi, this was answered in a previous post: "Answer: s-character is the contribution of sigma type bond in a hybridization: sp3 = 25% s-character, 75% p-character sp2 = 33% s-character, 66% p-character sp = 50% s-character, 50% p-character The more s-character a bond has, the stronger and shorter...
by Amber_Candelaria_1D
Mon Oct 31, 2016 9:58 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Tetrahedral Angles
Replies: 1
Views: 352

Tetrahedral Angles

Hi, I've memorized the bond angles for all the VSEPR geometries but I don't seem to understand why the tetrahedral shape has angles of 109.5 degrees. It's hard for me to picture it without a 3D diagram. Could anyone explain? Thank you in advance!
by Amber_Candelaria_1D
Mon Oct 24, 2016 1:44 pm
Forum: Ionic & Covalent Bonds
Topic: Stronger bonds
Replies: 3
Views: 367

Stronger bonds

How would we be able to tell which molecules have stronger bonds? Or in other words, what makes a bond strong?
by Amber_Candelaria_1D
Tue Oct 11, 2016 3:22 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1017991

Re: Post All Chemistry Jokes Here

How many moles are in a guacamole? Avocado's number.
by Amber_Candelaria_1D
Mon Oct 03, 2016 7:51 pm
Forum: Properties of Electrons
Topic: Constructive and Destructive Interference [ENDORSED]
Replies: 3
Views: 889

Constructive and Destructive Interference [ENDORSED]

What does it mean for waves to interact in-phase and out-of-phase?

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