Covers the various sections relating to Quantitative Chemistry as per the IEB Physical Sciences SAG.
Includes notes from the textbook, as well as additional class, video and research information, diagrams and practice questions.
Applicable to all IEB Grade 12s.
Written by a 95% < student.
Spelling and unwilling to fix it before final exams in November to where I do not need the notes for afterwards.
Seller
Follow
KirstenBarbour
Reviews received
Content preview
The Mole Concept
The technique of being able to quantitatively measure the amount of substance present in a
chemical system.
Using the number of moles present to calculate:
- mass of substance present
- volume of substance present (gases only)
- number of particles of substance present
Mole
= SI unit for amount of substance
Molar mass
= the mass in grams of one mole of that substance.
Molar volume
= the volume that one mole of any gas will occupy at STP.
KEY
n = mole (mol)
m = mass (g)
M = molar mass (g.mol-1)
V = volume (dm3 = cm)
Vm = molar volume = 22.4 dm3.mol-1 at STP
N = number pf particles
NA = 6.02 x 1023 mol-1
Formulae:
𝑚
n=
𝑀
𝑣
n=
𝑉𝑚
𝑁
n=
𝑁𝐴
, Concentration
= the amount of solute per unit volume of solution (mol.dm-3)
𝑛
c=
𝑉
𝑚
c=
𝑀𝑉
Solute: the substance that is dissolved in the solvent in the solution.
Solvent: the substance in which another substance is dissolved into, forming a solution.
Solution: a homogeneous mixture of solute and solvent. n = mole (mol)
NOTE: Concentration of a diluted solution
C1 x V1 = C2 x V2
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller KirstenBarbour. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $2.96. You're not tied to anything after your purchase.
