4.Normality Normality is a concentration unit that uses chemical equivalent or gram equivalent term. This concentration term is not very commonly used in today’s laboratories.
In analytical chemistry one often has to deal with solutions and thus it is very important to know parameters used to define concentration. A solvent
141.The mole concept(4).
Before starting to solve problems on the mole concept, let us jot down a few important formulae – Let us solve some problems based on
140.The Mole concept(3).
In the previous post, we discussed how to relate a measurable quantity , volume , to a mole. In this post we will discuss how
139.The Mole Concept (2)
In the last post we left some questions unanswered. Questions like –How does one relate the number of particles to volume and mass of the
138.The Mole Concept(1).
In this post, we are going to study one of the most seminal concepts, not only in analytical but in entire chemistry. Understanding this concept
9.Confidence Limit (CL)- The confidence limit is the level of confidence we have about a value being statistically significant. Confidence Limit (CL)= 100 × (1 − α)
From this post onwards we will start getting acquainted with some fundamentals of analytical chemistry. What is analytical chemistry? What all topics does it encompass?
135. Practice problems(2).
5) Is it cyclic ? ✓ Conjugated double bonds ? ✓ Is it planar? × # of π electrons 8 # of lone pair of
Q: Classify the following compounds as aromatic, anti-aromatic or non-aromatic – 1) Is it cyclic ? ✓ Conjugated double bonds ? ✓ Is it planar?
“There is no exception to the rule, that every rule has an exception.”- James Thurber. After learning all about aromaticity and antiaromaticity, we now proceed
132.Criteria for Aromaticity(2).
Let us now begin to discuss the magnetic properties of aromatic compounds. 3]Magnetic properties. I) Aromatic ring current– Aromatic compounds have delocalised , closed loop