Chem Note (英皇教育 A[1].Fung) HKCEE 可&aelig

Chem Note (英皇教育 A[1].Fung) HKCEE 可&aelig

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I. The following gases CAN dissolve in water . Gas Color of gas Acidic / alkaline when dissolve in water 1. Chlorine gas Cl 2 yellowish green Acidic solution 2. Hydrogen chloride HCl colorless Acidic solution 3. Carbon dioxide CO 2 colorless Acidic solution 4. Nitrogen dioxide NO 2 brown Acidic solution 5. Sulphur dioxide SO 2 colorless Acidic solution 6. Sulphur trioxide SO 3 colorless Acidic solution 7. Ammonia NH 3 colorless Alkaline solution Equation when dissolve in water What is formed? 1 Cl 2 (g) + H 2 O HCl (aq) + HOCl (aq) Hydrochloric acid + Hypochloric acid 1 HCl (g) HCl (aq) Hydrochloric acid 1 CO 2 (g) + H 2 O H 2 CO 3 (aq) Carbonic acid 2 NO 2 (g) + H 2 O HNO 3 (aq) + HNO 2 (aq) Nitric acid + Nitrous acid 1 SO
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Unformatted text preview: 2 (g) + H 2 O H 2 SO 3 (aq) Sulphurous acid 1 SO 3 (g) + H 2 O H 2 SO 4 (aq) Sulphuric acid 1 NH 3 (g) + H 2 O NH 4 + (aq) + OH . (aq) Ammonium ion + Hydroxide ion II. The following gases CANNOT dissolve in water . Hydrogen gas H 2 Nitrogen gas N 2 Oxygen gas O 2 (only slightly soluble) Noble gas He, Ne, Ar . . Carbon monoxide CO Nitrogen monoxide NO Petroleum gases C x H y like methane CH 4 , ethane C 2 H 6 , propane C 3 H 8 , butane C 4 H 10 ethene C 2 H 4 , propene C 3 H 6 , butene C 4 H 8 Hydrogen sulphide H 2 S . A. Fung Tel: 23050505 www.fungsir.net Soluble gas p.1 END...
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Chem Note (英皇教育 A[1].Fung) HKCEE 可&aelig

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