CHEM 181 Lecture Notes - Lecture 6: Calcium Bicarbonate, Magnesium Sulfate, Halite

• School: McGill University
• Department: Chemistry
• Course: CHEM 181
• Professor: Multiple

Document Summary

Minerals are micronutrients like vitamins, they are needed in small quantities. One potent source of minerals is the ocean which contains salt as the main mineral and other minerals present. One example is the dead sea which contains around 30% of salt minerals in its water. When looking at the minerals, they are on their own so for example you will have: These minerals then mix with different combinations of elements such as hco3 -; so4. These combinations through the ionic bonds form the salts such as calcium and. Sodium which turns into the mineral gypsum or magnesium and sulphur will form magnesium sulphate which are epsom salts or nally calcium and bicarbonate which requires two bicarbonates due to only having one negative charge (ca(hco3)2). This decomposes in (caco3+ co2+h2o) calcium carbonate, carbon dioxide and water. The calcium carbonate is the mineral and that is limestone. This is a food substitute which contains magnesium and calcium.