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| 1. |
Which ionic from of iron is used to find chemical formula of iron chloride and why |
| Answer» Ferrous\xa0chloride\xa0is prepared by addition of\xa0iron\xa0powder to a solution of hydrochloric acid in methanol. This reaction gives the methanol solvate of the dichloride, which upon heating in a vacuum at about 160 °C converts to anhydrous FeCl2.\xa0The most common\xa0use\xa0of\xa0ferric chloride\xa0is in solution. When dissolved it forms a light brown aqueous solution with a faint hydrochloric acid odor. It is highly corrosive to most metals and probably corrosive to tissue. It is noncombustible and primarily\xa0used in\xa0sewage treatment and water purification. | |