Water Analysis and Classification

To be aware of water properties and classification, understand the water analysis (physical and chemical examination), be aware of water hardness and its classification, know various methods for determination of water hardness, be aware of detection of gases in water, know different methods for determination of metals in water, understand the different sources of water pollution, be able to test for water pollution

Clear, transparent, tasteless, odorless, colorless in small quantities, freezes at 0°C, boils at 100°C, greatest density at 4℃, dissolves almost all substances

100°C

<p>0°C</p> Signup and view all the answers

<p>Pure water, Polluted water, Contaminated water</p> Signup and view all the answers

<p>Rain water, Surface water, Underground water</p> Signup and view all the answers

<p>Potable water, Irrigation water, Industrial water, Pharmaceutical water</p> Signup and view all the answers

<p>Sample taken must be representative, Samples doesn't deteriorate or becomes contaminated, Store sample in bottle made of inert material</p> Signup and view all the answers

<p>From lines, from wells, from river or stream</p> Signup and view all the answers

<p>Total solids is the residue left after evaporation of sample water, drying at 103°C, cooling in desiccator, and weighing until constant weight.</p> Signup and view all the answers

<p>Color, Odor, Turbidity, Electrical conductivity</p> Signup and view all the answers

<p>Total fixed solids can be determined by igniting total solids in an electric muffle at 600 ºC.</p> Signup and view all the answers

<p>Most natural water has a pH range from 4-9.</p> Signup and view all the answers

<p>Sewage pollution may be suggested by the high value of volatile solids.</p> Signup and view all the answers

<p>The normal pH of pure water at 25°C is 7.</p> Signup and view all the answers

<p>Alkalinity of water is mainly due to the presence of CO32- and HCO3-.</p> Signup and view all the answers