F.4 CHEMISTRY_______急!!

Classify the following into 2 catagories: soluble salt and insoluble salt.

CuSO4, MgSO4, NaCl, NH4Cl, Ca(HCO3)2

a.Name each of the above salts.

b.Describe the experimental procedure in detail how you would prepare the salt NH4Cl. (Write in point form)

1 個解答

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  • 1 十年 前
    最佳解答

    a. CuSO4 - Copper(II) Sulphate, MgSO4 - Magnesium Sulphate, NaCl - Sodium Chloride, NH4Cl - Ammonium Chloride Ca(HCO3)2 - Calcium Hydrogen Carbonate/Calcium bicarbonate

    b.1.Put ammonia solution in a beaker and add hydrochloric acid

    2. Bring the solution to the boil and evaporate the water about 30 cm3of solution is left. 3. Pour this into an evaporating basin and put it on a steam bath.

    4. Leave until all the water has evaporated; beware of spitting.

    5. collect the product by a scraper

    2007-03-06 19:54:12 補充:

    All these salts are soluble in water

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