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 post,

# Category: Analytical Chemistry

## 150.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(14) – Sampling(1).

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

## 149.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(13) – 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.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(12) – 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.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(11) – Concentration units(6)- 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 talk more

## 146.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(10) – Concentration units(5)- 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.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(9) – Concentration units(4)- 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.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(8) – Concentration units(3)- 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.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(7) – Concentration units(2)- 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.FUNDAMENTALS OF ANALYTICAL CHEMISTRY(6) – Concentration units(1).

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.Fundamentals of Analytical Chemistry(6) – 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.Fundamentals of Analytical Chemistry(5)- 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.Fundamentals of Analytical Chemistry(4) – 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

## 138.Fundamentals of Analytical Chemistry(3)-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

## 137.Fundamentals of Analytical Chemistry(2) – Introduction(2).

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)

## 136. Fundamentals of Analytical Chemistry (1)-Introduction(1).

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?

## 20.Significant Figures(2).

Since our last post we are trying to get an overview of the concept of significant figures and we shall continue to do so in

## 19.Significant Figures(1).

We have been exploring the topics ‘measurements’ and ‘errors‘ in the previous few posts. Whatever we have learned till now,can be recapitulated as follows –

## 18.Analysis of errors(3)-Deviation and Standard Deviation.

Our last post was all about studying different parameters and formulas. In this post let us study two very important concepts, from among various parameters

## 17.Analysis of errors(2).

We have been studying all about errors in the last few posts.We continue our discussion further and talk in greater detail about ways of expressing

## 16.Analysis of Errors(1)- Accuracy and Precision.

As mentioned in my earlier post , we start this post with the introduction of two new parameters in error analysis namely – ACCURACY & PRECISION.

## 15.Calculation of Errors.

In the last post we discussed how measurements are subject to errors and the different types of errors that one might come across.In this post

## 14.Errors

As mentioned in the last post, the unawareness of uncertainties in our measurement renders our experimental data insignificant.While measuring any quantity, there can be