important solutions

Degree and order of a differential equation How to form a differential equation Types of differential equations and their general solutions..

. Methanol is extremely soluble in water and its 40% aqueous solution is called formalin. Formalin is a disinfectant and a preservative for biological samples. Methanol is used in the manufacture of bakelite, resins and other polyme..

Lithium and Sodium act as strong reducing agents. So, they reduce some metallic chlorides and oxides into metals easily. This property is applied in the preparation of some metals. For example, beryllium, uranium etc., can be obtained by the reduction of the corresponding halides using sodium. ..

= (Empirical formula) x 1 = (MgSO 1 1 H 1 4 ) x 1 = MgSO 1 1 H 1 4 It is important to recognize that in the above formula all the hydrogen present is in the form of water of crystallisation. Since there are14 hydrogen atoms, therefore, the number of molecules of water = 7. Therefore, actu..

Here, the electrolyte is AgNO 3 and the electrodes are silver plates. The process of electrolysis is identical to that of CuSO 4 solution, except for one important difference. Copper has valency two, while silver has valency one. The reactions at the electrodes are So, si..

(due to its highly negative electrode potential). Instead, H + ions produced due to the self-ionization of water get reduced at cathod..

Stoichiometric Calculations Involving Reactions/Solutions - Most chemical reactions are carried out in solutions. It is therefore important to know how to express the concentration of the substance in its solution. Most common ways of expressing concentration..

Solutions are homogeneous mixtures having great importance in our day to day life. In this chapter we have learnt the various types of solutions, the meaning of vapor pressure, Raoult's Law, Colligative Properties and Abnormal Molecular Mass..

Its precise role is not well known. i) However, with Na + and K + , it helps in determining solute concentration and anion - cation balance in the cells. ii) Chlorine plays an important role in photosynthesis. It takes part in the water splitting reaction, thus releasing oxyg..

This is a very important step in photography. This process can be done only with the exposed film. The exposed film is developed only in dark using some alkaline solutions like quinol or pyrogallol. The alkaline solutions act as developers by reducing silver bromide t..