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  • Analytical
    • Errors
      • errors
      • calculation of errors
      • Accuracy and Precision
      • Analysis of errors
      • Deviation ad standard deviation
    • significant Figures
    • Fundamentals of analytical chemistry
      • Introduction
      • mole concept
      • Concentration units
      • Methods of analysis
      • sampling
  • General
    • Scope of chemistry
    • Ancient Indian Chemistry
    • Chemistry and Spirituality
    • Chemistry and mathematics
      • Variables
      • Graphs
      • Differentiation
      • integration
    • SI Units
  • Inorganic
    • Chemical Bonding
      • chemical bonding
      • Ionic bond
      • Valence bond theory
      • VSEPR
      • hybridization
      • Isovalent hybridization
      • Bent’s rule
      • hybridization in solid state
      • Drago rule
      • Covalent bond
      • Molecular orbital theory
      • LCAO approximation
      • co ordinate covalent bond
      • Metallic bond
      • Hydrogen bonding
      • Bonding Practice problems
    • The periodic table
      • The periodic table
      • History of periodic table
      • Modern periodic table
      • Metals
      • Non-metals and Metalloids
      • s/p/d/f blocks
      • Atomic number Atomic mass number Atomic size
      • Atomic mass and Atomic weight
      • Ionization energy
      • Electron affinity
      • Electronegativity
      • Melting point bond dissociation energy & bond energy
  • Organic
    • Catenation and organic compounds
    • Classification of organic compounds
    • Organic formulae
      • Empirical formula
      • Structural formula
      • Molecular Formula
    • Resonance
    • The structure of Benzene
    • Aromaticity
      • aromaticity
      • Huckel’s rule
      • Huckel molecular orbital theory
      • Huckel approximations
      • Calculations of HMO theory
      • HMO treatment to benzene
      • Frost circles
      • Charged aromatic systems
      • Heterocyclic aromatic compounds
      • Polycyclic aromatic hydrocarbons
      • annulenes
      • fullerenes
      • Antiaromaticity
      • Why 4n+2π ?
      • criteria for aromaticity
      • homoaromaticity
      • Aromaticity practice problems
  • Physical
    • Atomic structure
      • History and discovery of electrons
      • Discovery of the nucleus
      • The Bohr model
      • sommerfield model
      • Quantum Numbers
      • Electronic configuration
      • Discovery of neutron
      • wave particle duality
      • de broglie thesis
      • wave mechanics vs Quantum Mechanics
      • Schrödinger equation
      • Uncertainity principle
      • Other subatomic particles
    • Photochemistry
      • Electromagnetic radiation
      • Laws of photochemistry
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Category: General Chemistry

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

July 8, 2020 Gauri Nigudkar

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

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105.Resonance(2)

January 24, 2019 Gauri Nigudkar

In the last post we studied what resonance means and how resonating structures blend to give the resonance hybrid structure. In this post we shall

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13.SI Units.

July 7, 2016 Gauri Nigudkar

As we know ,science is studied all around the world.Thus, it is essential that we have a standard system for measurements and have units for

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12.Chemistry & Mathematics(8)-Integration(2).

June 23, 2016 Gauri Nigudkar

In the last post we studied what Integration means and some basic rules for finding integrals.I mentioned  a term ‘Indefinite Integral’ in my last post.In

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11.Chemistry & Mathematics(7)-Integration(1).

June 22, 2016 Gauri Nigudkar

Today I begin writing about the second part of calculus – INTEGRATION.In the earlier posts we discussed how differentiation helps us to divide our data

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10.Chemistry & Mathematics (6)-Differentiation(3).

June 17, 2016 Gauri Nigudkar

Partial Differentiation. In this post I intend to discuss the concept of PARTIAL DIFFERENTIATION.We have already studied that for a function with one variable ‘y’

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9.Chemistry &Mathematics(5)-Differentiation(2).

June 16, 2016 Gauri Nigudkar

In this post we shall discuss the concept of differentiation in greater detail.In our last post we have already learned what derivatives are and why

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8.Chemistry & Mathematics(4)-Differentiation(1).

June 11, 2016 Gauri Nigudkar

  Calculus. After discussing about graphs now we shall discuss a somewhat esoteric mathematical topic namely Calculus which includes the following two types – i)Differential

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7.Chemistry & Mathematics(3) – Graphs(2)

June 9, 2016 Gauri Nigudkar

Log-log graphs.  We discussed in the last post that a straight line graph is very helpful in interpreting experimental data but sometimes experiments give us

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6.Chemistry & Mathematics(2) – Graphs(1)

June 7, 2016 Gauri Nigudkar

In the earlier post we discussed about the importance of mathematics in Chemistry.Today,let us  begin by understanding how we can plot our experimental data on

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5.Chemistry & Mathematics(1) – Variables.

June 4, 2016 Gauri Nigudkar

Galileo said – “Mathematics is the language with which God wrote the universe” . I don’t know how true is that , but I do

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4.Chemistry and Spirituality -Part II

May 28, 2016 Gauri Nigudkar

“God, our Creator, has stored within our minds and personalities, great potential strength and ability. Prayer helps us tap and develop these powers.” – A.

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3.Chemistry and Spirituality – Part I

May 23, 2016 Gauri Nigudkar

I come from a land (INDIA) , where in ancient times, saints were scientists.It would not be an overstatement to say that the yogis and

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2.Ancient Indian Chemistry

May 20, 2016 Gauri Nigudkar

Today I begin to write about ancient chemists and the knowledge they had in the field of Chemistry. I came across many references in ancient

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1.Scope of Chemistry

May 12, 2016 Gauri Nigudkar

Chlorine is a deadly poisonous gas employed on European battlefields in World war I.Sodium is a corrosive metal which burns upon contact with water.Together they

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A blog written to elucidate concepts in chemistry.

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  • Gauri Nigudkar
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