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Formula of a Hydrate (\(\text{Anhydrous Solid}\ce{*}x\ce{H2O}\)) The formula of a hydrate can be determined by dehydrating a known mass of the hydrate, then comparing the masses of the original hydrate and the resulting anhydrous solid.
17 Ιουν 2023 · A hydrate contains a definite number of water molecules bound to each ionic compound (also called the anhydrous salt). The formula of the hydrate is represented by the formula of the anhydrous salt followed by a dot and xH2O, where x is the number of moles of water per mole of the anhydrous salt.
7 Ιουν 2024 · A compound which doesn’t contain water of crystallisation is called an anhydrous compound. E.g. anhydrous copper (II) sulfate is CuSO 4. A compound can be hydrated to different degrees. E.g. cobalt (II) chloride can be hydrated by six or two water molecules. CoCl 2 ∙ 6H 2 O or CoCl 2 ∙ 2H 2 O.
In this guide, we give a complete explanation of hydrates, including the hydrate definition, the three different types of hydrates, the rules you need to know to name hydrates and write out their formulas, and common hydrate examples you may have heard of.
24 Σεπ 2024 · CuSO4 + 5H2O → CuSO4∙5H2O. Hydrated to anhydrous salt (by heating): CuSO4∙5H2O → CuSO4 + 5H2O. Hydrated copper (II) sulfate and anhydrous copper (II) sulfate. Diagram showing the dehydration of hydrated copper (II) sulfate. Last updated: 24 September 2024. You've read 1 of your 10 free revision notes. Unlock more, it's free!
A substance that does not contain any water is referred to as anhydrous. Some anhydrous compounds are hydrated so easily that they are said to be hygroscopic and are used as drying agents or desiccants. Organic chemistry.
What is the formula of the hydrate? Solution: 1) Determine mass of water driven off: 15.67 − 7.58 = 8.09 g of water. 2) Determine moles of MgCO 3 and water: MgCO 3 ---> 7.58 g / 84.313 g/mol = 0.0899 mol H 2 O ---> 8.09 g / 18.015 g/mol = 0.449 mol.