Search found 13 matches
- Sat Dec 05, 2015 4:59 pm
- Forum: Lewis Structures
- Topic: 2011 Final Q5B: Lewis Structure
- Replies: 2
- Views: 719
Re: 2011 Final Q5B: Lewis Structure
you can do that but that won't be the most stable structure as the formal charge of S would no longer be 0.
- Sat Nov 28, 2015 10:38 am
- Forum: Lewis Acids & Bases
- Topic: Acids and bases
- Replies: 2
- Views: 783
Re: Acids and bases
A strong acid would completely ionise in water, however which acids would do that you could memorise the names of the six strong acids we are supposed to know. hydrochloric acid HCl hydrobromic acid HBr hydroiodic acid HI sulfuric acid H2SO4 nitric acid HNO3 perchloric acid HClO4 Every other acid wo...
- Sat Nov 28, 2015 10:31 am
- Forum: Empirical & Molecular Formulas
- Topic: Video Midterm Question #2
- Replies: 2
- Views: 550
Re: Video Midterm Question #2
Thank you so much, will take care of that during the exam.
- Fri Nov 27, 2015 6:21 am
- Forum: Empirical & Molecular Formulas
- Topic: Video Midterm Question #2
- Replies: 2
- Views: 550
Video Midterm Question #2
The Empirical formula on the midterm solved step by step.
- Sun Nov 22, 2015 5:33 am
- Forum: Polyprotic Acids & Bases
- Topic: Polyprotic Acids & Bases
- Replies: 1
- Views: 520
Re: Polyprotic Acids & Bases
A monoprotic acid is an acid that can donate only one proton, while polyprotic acid can donate more than one proton. Similarly, a monoprotic base can only accept one proton, while a polyprotic base can accept more than one proton.
- Mon Nov 16, 2015 1:25 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: question on 11.55
- Replies: 3
- Views: 763
Re: question on 11.55
You can solve the question without a graphing calculator by using the quadratic formula and doing the calculations with a normal calculator
- Mon Nov 16, 2015 1:22 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: K Values
- Replies: 1
- Views: 457
Re: K Values
When K is small, less than 1, it means that the rmixture mostly contains reactants.
- Thu Nov 05, 2015 9:15 pm
- Forum: Lewis Structures
- Topic: Lewis Structure of HClO3
- Replies: 3
- Views: 25530
Re: Lewis Structure of HClO3
Calculate the formal chargers, the most stable structure would be without the H on the Cl atom.
- Sun Oct 25, 2015 5:13 pm
- Forum: Octet Exceptions
- Topic: Single bonds or Double bonds in ClO2?
- Replies: 1
- Views: 780
Re: Single bonds or Double bonds in ClO2?
check which bond structure gives the lowest formal charge.
- Sun Oct 18, 2015 5:28 pm
- Forum: Octet Exceptions
- Topic: Octet Rule
- Replies: 1
- Views: 562
Re: Octet Rule
generally elements of period 3 do not obey the octet rule. There are a few elements that are not in period 3 that also come under these exceptions, you should memorise them.
- Sun Oct 11, 2015 8:14 pm
- Forum: DeBroglie Equation
- Topic: Quiz 1 Preparation Calculating Wavelength
- Replies: 2
- Views: 785
Re: Quiz 1 Preparation Calculating Wavelength
the standard unit for mass is always kilograms, use 275kg and you will get the right answer.
- Sun Oct 11, 2015 7:59 pm
- Forum: Trends in The Periodic Table
- Topic: Electron Affinity of Carbon vs. Nitrogen
- Replies: 1
- Views: 808
Re: Electron Affinity of Carbon vs. Nitrogen
Nitrogen is already in its half filled stable configuration 1s2 2s2 2p3 therefore it resist any change in its stable configuration. Whereas carbon would want an electron to achieve half filled stable configuration. Therefore carbon has higher electron affinity.
- Mon Oct 05, 2015 2:49 pm
- Forum: Properties of Electrons
- Topic: Question No 1.59
- Replies: 1
- Views: 430
Question No 1.59
While solving this question why is the units taken as Joules per photon