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  1. chem.libretexts.org › Courses › University_of_Arkansas_Little_Rock2.12: Hydrates - Chemistry LibreTexts

    The water present in the latter case is called water of hydration or water of crystallization. Common examples of minerals that exist as hydrates are gypsum (\(\ce{CaSO4*2H2O}\)), Borax (\(\ce{Na3B4O7*10H2O}\)) and Epsom salts (\(\ce{MgSO4*7H2O}\)).

  2. 7 Ιουν 2024 · A compound that contains water of crystallisation is called a hydrated compound. The water of crystallisation is separated from the main formula by a dot when writing the chemical formula of hydrated compounds. E.g. hydrated copper (II) sulfate is CuSO 4∙ 5H 2 O.

  3. 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.

  4. What is the formula of the hydrate? Example #2: A hydrate of Na 2 CO 3 has a mass of 4.31 g before heating. After heating, the mass of the anhydrous compound is found to be 3.22 g. Determine the formula of the hydrate and then write out the name of the hydrate.

  5. 7 Ιουν 2024 · A compound that contains water of crystallisation is called a hydrated compound. The water of crystallisation is separated from the main formula by a dot when writing the chemical formula of hydrated compounds. E.g. hydrated copper (II) sulfate is CuSO 4∙ 5H 2 O.

  6. 2 Νοε 2023 · Last updated. 2 November 2023. Hydrated & Anhydrous Salts. When salts are being prepared, some water can be retained within the structure of the salt during the crystallisation process. This affects the crystal's shape and colour. Salts that contain water within their structure are called hydrated salts.

  7. Name the hydrate according to the results of the experiment. Epsom salt (MgSO 4 ·7H 2 O) is a heptahydrate of magnesium sulfate: within one mole of magnesium sulfate heptahydrate are seven moles of water. This water can be driven off by heat to form the anhydrous (dehydrated) ionic compound, magnesium sulfate.

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