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You weight out a 0.470-sample of hydrated nickel(II ) chloride, NiCl 2 ·xH 2 O. Upon heating, the mass of the anhydrous salt that remains is 0.256 grams. What is the formula of the hydrate? What is the name of the hydrate? Answer
2 Νοε 2023 · The formula shows the number of moles of water contained within one mole of the hydrated salt. E.g. hydrated copper(II) sulfate, CuSO 4 ∙5H 2 O, contains 5 moles of water in 1 mole of hydrated salt; A compound which doesn’t contain water of crystallisation is called an anhydrous compound. E.g. anhydrous copper(II) sulfate is CuSO 4
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.
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. Solution: 1) Determine mass of water driven off: 4.31 − 3.22 = 1.09 g of water. 2) Determine moles of Na 2 CO 3 and water: Na 2 CO 3---> 3.22 g / 105.988 g/mol = 0.0304 mol
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 x H 2 O, where x is the number of moles of water per mole of the anhydrous salt. The hydrate is named by naming the anhydrous ...
The purposes of this investigation were to determine the absorption of large amount of sodium sulfate(18.1 g as the decahydrate, equivalent to 8.0 g of the anhydrous salt) and to compare the bioavailability when this amount is administered orally to normal subjects as a single dose and as four equally divided hourly doses.
Design an experiment to accurately determine the empirical formula of a given hydrate. Predict how experimental factors will impact the accuracy and precision of results. Calculate the molar ratio of water to anhydrous solid to determine the hydrate's formula.
