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|Molecular formula|| NO−|
|Molar mass||62.0049 g mol-1|
|Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)|
Nitrate (NO31-) is a polyatomic ion. It is made up of one nitrogen and three oxygen atoms. It is part of many important molecules. Potassium nitrate is a common type of nitrate. It is often used in fertilizers because plants need both potassium and nitrates to live and grow. Sodium nitrate is also used in preserving foods.
Nitric acid has the formula HNO3 and has no overall charge, because the hydrogen ion is positive.
Nitrate has a group valency of 1.