## 151.Sampling (2).

In the previous post, we learned that getting an appropriate representative sample for analysis is a very important step in getting accurate results. In this

## 150.Sampling (1).

We talked about different methods of analysis in the previous post and inferred that only with experience and intuition, we can choose the correct way

## 149.Methods of Analysis.

Analytical chemistry is all about analysis. In this post, we shall look at the various methods of analysis that we encounter in this branch of

## 148.Concentration units (7).

1. Calculate gram equivalents of the following – (Given – Eq.wt of O=8,Al =9)i)7 × 10-3 kg of oxygen.ii) 4.5 × 10-3 kg of aluminium

## 147.Concentration units – Normality (5).

In the previous posts, we have studied in detail, how to find n-factor and equivalent weight for a number compounds. In this post we shall

## 146. Concentration units – Normality (4).

SALTS Salts are ionic compounds, consisting of cations (positively charged ions) and anions (negatively charged ions). e.g.- CuSO4 ⇒ Copper sulfate is a salt that

## 145.Concentration units – Normality (3).

BASES In general, a base is a compound that yields OH– ion/s on dissociation. Example 5 – Let us now consider a base, sodium hydroxide

## 144.Concentration units – Normality (2).

In this post, we will specifically look at some acids whose n-factor calculation can seem a little tricky. We will study the structure of these

## 143.Concentration units – Normality (1).

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.

## 142.Concentration units.

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