Search found 20 matches

by samanthalee14adis1G
Sat Dec 03, 2016 1:03 am
Forum: Naming
Topic: question
Replies: 2
Views: 395

question

when do we put an "ion" at the end of a coordination compound name?
by samanthalee14adis1G
Fri Dec 02, 2016 11:43 pm
Forum: Naming
Topic: charge question
Replies: 1
Views: 260

charge question

How do we find the charge of an anion or cation
by samanthalee14adis1G
Fri Dec 02, 2016 11:28 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: molecular orbital diagram question
Replies: 1
Views: 266

molecular orbital diagram question

i know that when z>= 8 we put the pz under px and py and that when z<8 we but the pz above px and py
but when we have something like CO, C has z=6 and O has z=8 why do we use the diagram we would use for z<8 even though O=8?
by samanthalee14adis1G
Fri Dec 02, 2016 11:06 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: bond order question [ENDORSED]
Replies: 3
Views: 471

bond order question [ENDORSED]

is calculating the bond order basically calculating how many bonds are between two atoms?
by samanthalee14adis1G
Fri Dec 02, 2016 10:53 pm
Forum: Administrative Questions and Class Announcements
Topic: midterm solution guide?
Replies: 1
Views: 250

midterm solution guide?

Someone told me there was a midterm solution guide on chem community? is that true? if so where can i find it
by samanthalee14adis1G
Fri Dec 02, 2016 10:30 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: ax2e2 question [ENDORSED]
Replies: 1
Views: 275

ax2e2 question [ENDORSED]

what is the vsepr shape name of a molecule with AX2E2 ?
by samanthalee14adis1G
Fri Dec 02, 2016 10:29 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: seesaw shape question [ENDORSED]
Replies: 1
Views: 364

seesaw shape question [ENDORSED]

What are the bond angles for a see saw shape?
by samanthalee14adis1G
Fri Dec 02, 2016 10:05 pm
Forum: *Titrations & Titration Calculations
Topic: calculating PH Question [ENDORSED]
Replies: 1
Views: 252

calculating PH Question [ENDORSED]

When calculating the pH at the stoichiometric point of the titration , will the chemical equilibrium equation be given to us?
for example, will Na^+ +HCOO^- +H20 <> HCOOH(aq) + OH^-(aq) +Na^+(aq) be given to us?
by samanthalee14adis1G
Fri Dec 02, 2016 10:02 pm
Forum: *Titrations & Titration Calculations
Topic: weakbase-strong acid question
Replies: 3
Views: 450

Re: weakbase-strong acid question

but isnt that the explanation lavelle told us not to use?
by samanthalee14adis1G
Fri Dec 02, 2016 7:43 pm
Forum: *Titrations & Titration Calculations
Topic: weakbase-strong acid question
Replies: 3
Views: 450

weakbase-strong acid question

if the sample is a weak base, and a strong acid is added, why does it reach a stochiometric point below ph7?
by samanthalee14adis1G
Fri Dec 02, 2016 6:56 pm
Forum: Lewis Acids & Bases
Topic: examples
Replies: 1
Views: 325

examples

What are the main weak acids and weak bases we should know?
what are the main strong acids and strong bases we should know?
Is knowing just the ones in the course reader O.K.?
by samanthalee14adis1G
Fri Dec 02, 2016 6:12 pm
Forum: *Titrations & Titration Calculations
Topic: con = h/v question
Replies: 2
Views: 289

con = h/v question

what does the h in concentration = h/v stand for?
by samanthalee14adis1G
Fri Dec 02, 2016 5:58 pm
Forum: *Titrations & Titration Calculations
Topic: titration types
Replies: 1
Views: 250

titration types

Is there such a thing as a weak acid weak base titration type? If no, why not?
by samanthalee14adis1G
Wed Nov 30, 2016 2:53 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: final yield question
Replies: 2
Views: 347

final yield question

can someone explain how taking out ammonia would increase the yield of ammonia?
by samanthalee14adis1G
Wed Nov 30, 2016 2:49 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: finding final pH
Replies: 2
Views: 411

finding final pH

When finding the ph, why do we subtract the pOH from 14 to find the pH?
by samanthalee14adis1G
Wed Nov 09, 2016 4:09 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: heteronuclear diatomic molecules
Replies: 1
Views: 240

heteronuclear diatomic molecules

why do we use z<8 diagrams for heteronuclear diatomic molecules instead of the z=>8 diagram?
by samanthalee14adis1G
Wed Feb 03, 2016 3:36 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Energy Created by Molecule Movement
Replies: 1
Views: 286

Energy Created by Molecule Movement

Do atoms have rotational and vibrational energy? If not, why?
by samanthalee14adis1G
Wed Jan 27, 2016 12:08 am
Forum: Calculating Work of Expansion
Topic: Expansion Work
Replies: 1
Views: 210

Expansion Work

Expansion work is work due to the change of volume in a system. Does this include when the volume decreases or only when the volume increases?
by samanthalee14adis1G
Mon Jan 25, 2016 8:41 pm
Forum: Phase Changes & Related Calculations
Topic: heat curve slope question
Replies: 1
Views: 298

heat curve slope question

on the heat curve, what dictates the slope of solid, liquid and vapor and why does the solid and vapor portions of the graph on page 27 of the course reader have a steeper slope than that of the liquid portion?
by samanthalee14adis1G
Fri Jan 15, 2016 1:45 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Calorimeter differences
Replies: 1
Views: 210

Calorimeter differences

What is the difference between a constant volume and constant pressure calorimeter and what is the significance of each?

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