Category: science

An organic compound of carbon, hydrogen and nitrogen contains elements having a mass percentage of 66.67%, 7.41% and 25.92%, respectively. What is the empirical formula?

Step 1 : Assume the percentage as grams and divide it with molar mass. Step 2: By this way you have calculated the number of moles , further divide evey term with the smallest term which you have calculated in step 1. Step 3 : Now you have the simple whole number ratio of elements

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The SN2 mechanism

This is a type of reaction mechanism that is seen in case of nucleophillic substitution reactions. It is BIMOLECULAR NUCLEOPHILLIC SUBSTITUTION mechanism. In this kind of mechanism two molecules decide the rate of reaction, so it is BIMOLECULAR mechanism. The whole mechanism proceeds through a single step. That concerted step involves the bond breaking and

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How the age of mummies , dead bodies and fossils is calculated?

The aging of different organisms is mainly calculated by the special technique called the Radiocarbon dating. In this technique the age of any specimen is calculated on the basis of the present amount of an isotope of a particular element. Isotopes are the atoms of an element that have same atomic number but different atomic

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Why aeroplane leaves behind white trail in winters or cool weather ?

Hi guys today we are going to talk about the white trail formation during the winter,  when an aeroplane flies. To understand this phenomenon we must be aware of the combustion process taking place at the time of working of engine. During the combustion process, carbondioxide and water vapours are the major products. The water

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