Concentration Terms in Physical Chemistry
4.3 (2 ratings)
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Concentration Terms in Physical Chemistry

Detail discussion on Mole, Molarity, Molality, ppm, Weight %, Normality etc
4.3 (2 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
9 students enrolled
Created by Seema Kuntavalli
Published 3/2020
English
Current price: $13.99 Original price: $19.99 Discount: 30% off
5 hours left at this price!
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This course includes
  • 1.5 hours on-demand video
  • 1 downloadable resource
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
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What you'll learn
  • Concentration Terms which often appear in Physical Chemistry
  • Mole concept, Mole fraction
  • Mass %, Volume %, Mass/Volume %
  • ppm, ppb & ppt
  • Molarity, Molallity
  • Equivalent mass, Equivalents & Normality
  • Numerical problems on all concentration terms
Requirements
  • Basics of chemistry
  • An idea of what is an Atom, Molecule, Solute, Solvent, Solution etc
Description

Concentration is a very common concept used in chemistry and related fields. It is the measure of how much of a given substance is mixed with another substance. This can apply to any sort of chemical mixture, but most frequently is used in relation to solutions, where it refers to the amount of solute dissolved in a solvent.

Qualitatively, solutions of relatively low concentration are described as “dilute,” or “weak,” while solutions of relatively high concentration are described as “concentrated,” or “strong.”

Quantitative notation of concentration is far more informative and useful from a scientific point of view. There are a number of different ways to quantitatively express concentration; the most common are discussed in this course.

The choice of a particular concentration term depends on many factors like convenience, experimental limitations etc.

Who this course is for:
  • Secondary School students
  • IIT JEE Aspirants (India)
  • XI & XII students
Course content
Expand 10 lectures 01:40:47
+ Introduction
10 lectures 01:40:47

An introduction about how learning this course makes sense is explained.

Hoping to see students appreciate learning this course after this lecture.

Preview 01:31

Mole concept is an important concept in Chemistry. Having clarity in this concept enables us to understand higher level concepts better.

This lecture discusses the mole concept in detail with examples and numerical problems. Explanations are given in a simplistic manner so that even a high school student can catch it easily.

After the lecture student will be better equipped to solve mole concept related numerical problems.

Mole concept
15:16

Mole fraction is a concentration term widely used in Chemistry to express how much of each component is present in the mixture.

Lecture takes you through the detailed explanation of the concept with solved numerical problems.


Mole fraction
06:34

Mass %, Volume % & Mass/Volume % are 3 types of concentration terms used to express how much of a particular substance is present in the mixture. Usage of the concentration terms can be seen in most of the things we use in our day to day life like hand sanitizer, tablets, vinegar, shampoo etc.

This lecture takes you through these concentration terms in detail with the help of a numerical problem.

Preview 10:59

ppm, ppb and ppt is another set of concentration terms widely used to express that component of the mixture which is present in very low quantity. Example; fluoride, lead content of water. Metal content in the human body etc

Lecture takes you through the clear explanation of above concentration terms

ppm, ppb & ppt
07:02

'Molality' is the concentration term often used in colligative properties (elevation in boiling point, depression in freezing point, lowering of vapor pressure) related experiments where it involves a temperature change.

Lecture takes you through the clear explanation of this concentration term.

'Molarity' is the famous concentration term used in titration-lab and osmotic pressure related experiments.

There exists a slight difference between molality and molarity and the lecture concentrates on giving clarity on this line.

Molality & Molarity
07:56

Along with molarity and molality, normality is also used a lot in chemistry labs. This particular concentration term is very helpful when we need to back calculate in an experiment.

Lecture explains equivalent mass, equivalents and normality in comparison to molar mass, mole and molarity.

Equivalent mass, Equivalents & Noarmality
14:01

A consolidated sheet that includes all formulas discussed in this course.

Summary - Concentration Terms
03:54

Lecture goes through solving numerical problems on the concentration terms discussed. Majorly, problems concentrate on inter-conversion of two or more concentration terms.

Concentration Terms - Numericals
11:32

Lecture goes through solving numerical problems on the concentration terms discussed. Majorly, problems concentrate on inter-conversion of two or more concentration terms.

Concentration Terms - Numericals, continued...
22:02