Methods of characterization, Chemistry

Assignment Help:

 

Introduction

Methods of characterization aim to calculate the products of a reaction. The level of detail expected depends on the circumstances, and calculates the range of methods required. If the aim has been to build a known compound, one needs to check its purity and identity. Fingerprinting techniques measure some other property or a spectrum and compare it with results published for known compounds and available in literature databases.

 

Elemental analysis

Elemental analysis is important in establishing identity of a known compound and the purity, or the empirical (stoichiometric) formulae of a new one. Elemental composition is generally quoted as percent by mass, from which the stoichiometry can be, calculate from atomic mass (RAM) values. Calculate a compound (X) with the following composition by mass:

 

2339_Untitled.png

Dividing each mass percent by the corresponding RAM (Appendix 1) gives the following relative molar quantities

 

9_Untitled.png

These are very nearly in the proportions 1:9:6:3, suggesting a stoichiometric formula CrC9H6O3.

 


Related Discussions:- Methods of characterization

Lewis acids and bases-polymerization, Polymerization The tendency of ma...

Polymerization The tendency of many molecules to aggregate and form dimmers (e.g. Al2Cl6 2), extended polymeric, or larger oligomers structures can be regarded as a donor-accep

What are primary cells and explain its reactions?, This type of cells becom...

This type of cells becomes dead over a period of time and the chemical reaction stops. They cannot be revitalized or used again. Some ordinary examples are dry cell, mercury cell,

Nitrogenous base - composition of nucleic acids, Nitrogenous base: Thes...

Nitrogenous base: These are heterocyclic organic compound that comprise two or more nitrogen atoms in ring skeleton. These are called bases as the lone pairs of electrons on th

LATTICE OR CRYSTAL LATTICE, What are laws of crystallography?How it helps u...

What are laws of crystallography?How it helps us in the study of crystal structure

Hybrisation, examples of spd arrangement

examples of spd arrangement

Carbon, why must the mass relative of atom refer to atomic mass of C

why must the mass relative of atom refer to atomic mass of C

Lubricant., Explain the mechanism of fluid film or hydrodynamic lubrication...

Explain the mechanism of fluid film or hydrodynamic lubrication.

Uses of catechol, Uses of Catechol Catechol finds use as photographic d...

Uses of Catechol Catechol finds use as photographic developer and in the manufacture of alizarin and adrenaline hormone and like an antioxidant (inhibitor in auto oxidation) fo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd