In every method of irrigation, many solvent salts are mixed in the supply of water. Production of these salts like sodium chloride, gypsum, sodium bicarbonate and sodium nitrate takes place during weathering of minerals from nature. Quantity of salts in groundwater depends on the nature of the source of water. When surface water infiltrates, minerals keep dissolving with it. Chemical [...]
Water resource is an important natural resource, which is the basis of all resources, and exploitation as well as conservation of other natural resources is possible mainly due to the presence of water. It is a renewable resource, which can be made re-usable after using it once through the process of purification. Water alone is the only resource whose regular [...]
Experiment to Determine the Percentage of Water Absorbed By Raisins ! Experiment: Objective: To determine the percentage of water absorbed by raisins. Apparatus and materials required: A bowl, forceps, a common balance, a weight box, blotting paper and a few raisins. Theory: When raisins are placed in water (a hypotonic solution), they absorb water by a process called osmosis and [...]