Write a short note on DO and alkinity
Answers
Answer:
The concentration of dissolved salt in a given volume of water is called salinity. Salinity is either expressed in grams of salt per kilogram of water or in parts per thousand. For example, if you have 1 gram of salt and 1,000 grams of water, your salinity is 1g/kg, or 1 ppt (ppt, or ‰)
Answer:
Alkalinity is water's capacity to resist acidic changes in pH, essentially alkalinity is water's ability to neutralize acid. This ability is referred to as a buffering capacity. A water body with a high level of alkalinity (which is different than an alkaline water body) has higher levels of calcium carbonate, CaCO3, which can decrease the water's acidity. Therefore, alkalinity measures how much acid can be added to a water body before a large pH change occurs.