solution one networks

These are very fine thread-like, coiled filaments uniformly distributed in the nucleoplasm. At the time of cell division, the chromatin becomes thick and ribbon like and are known as chromosomes. The chromosomes contain genes, which are composed of DNA (deoxy-ribonucleic acid). Genes are responsib..

A source of emf is connected across one pair of opposite junctions (A and C), and a galvanometer G across the other opposite pair (B and D). The key K 1 is closed first and then K 2 . The value of R is varied till the galvanometer shows no deflection, i.e., I g = 0. Then, the..

Purification of Colloidal Sols - The colloidal solutions prepared by various methods usually contain electrolytes and other soluble substances as impurities. These impurities if not removed can destabilize the sols. Impurities are removed by the following methods: ..

When a solute is dissolved in a solvent a solution is formed. During dissolution of a solute in any solvent, a certain amount of heat is either absorbed or evolved. Such heat changes under constant pressure conditions are known as the enthalpy of solution. '..

The total number of sublevels or sub-shells possible in each energy level is equal to the numerical value of 'n'. Thus 'n' = 1 energy level can have only one sublevel which is 'l' = 0 or the 's' orbital, 'n' = 2 energy level can have two sublevels corresponding to 'l' = 0 (s) a..

Volume of sulphur dioxide gas = 350 ml at STP Mass of sulphur dioxide gas = 1 g Mass of one mole of sulphur dioxide = x g/mole Volume of 1 mole of sulphur dioxide = 22400 ml at STP Mass : Volume 1 : 350 ml x : 22400 ml Mass of 1 mole of SO 2 = 6..

is a homogeneous mixture of a solute dissolved in a solvent. Examples: Salt and water, sugar and water, iodine and alcohol. It should be remembered that: 1. A Solution is a homogeneous mixture of two or more substances. These substances can be in any of the three phy..

Volume of carbon monoxide = 100 ml Mass of carbon monoxide = 0.125 g Molar volume = 22400 ml Mass of 1 mole of carbon monoxide =? Volume : Mass 100 ml : 0.125 g 22400 ml : x g Mass of one mole of carbon monoxide = 28 g/mole \ Relative molecular mass of carbon monoxide = ..

In the first compound hydrogen = 5.93% Oxygen = (100 -5.93) = 94.07% In the second compound Hydrogen = 11.2% Oxygen = (100 -11.2) = 88.88% In the first compound the number of parts of oxygen that combine with one part by mass of hydrogen In the second compound the number of parts by ma..

Data given: 92.20% of silicon of mass 27.98 amu 4.7% of silicon of mass 28.98 amu 3.1 % of silicon of mass 29.97 amu Average atomic weight = 25.80 + 1.36 + 0.93 = 28.09 amu. Average atomic weight of silicon is 28.09 amu.11. One million silver atoms weigh 1..