They are used to identify the same material. The -ous being the older form of the name.
The Manganese Sulfate would be more correct if written as Manganese (II) Sulfate. This indicates the lower oxidation state of the Mn atom which is +2.
The term Manganous Sulfate is the older way of identifying the oxidation state.
If you see term Manganic in a molecule's name this is referring to the higher oxidation +3 oxidation state. In current usage it would be Manganese (III).
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Manganese sulfate typically refers to manganese(II) sulfate, which has manganese in the +2 oxidation state. Manganous sulfate specifically refers to this compound as well. Both terms are often used interchangeably to describe the same chemical compound.
The pH of a manganous sulfate solution will depend on the concentration of the solution. Manganous sulfate is a salt of manganese and sulfuric acid, and when dissolved in water, it will partially dissociate into Manganese ions (Mn2+) and sulfate ions (SO4 2-). The presence of manganese ions can slightly lower the pH of the solution due to hydrolysis reactions. To determine the exact pH, you would need to know the concentration of the manganous sulfate solution and perform a pH measurement using a pH meter or indicator.
The chemical name of MnSO4.2H2O is Manganese(II) sulfate monohydrate.
The chemical formula for manganese sulfate tetrahydrate is MnSO4•4H2O.
The molar mass for MnSO4 (manganese(II) sulfate) is approximately 151.0 g/mol. This value is calculated by adding the atomic masses of one manganese atom (Mn) and one sulfate ion (SO4).
No, calcium sulfate and calcium sulphate are the same chemical compound, commonly known as gypsum. Calcium sulfate dihydrate specifically refers to the hydrated form of calcium sulfate, where each molecule contains two molecules of water (CaSO4 ∙ 2H2O).