It has sodium ions and chloride ions. Sodium chloride is the compound that is responsible for the characteristic taste in sea water. The formula weight of sodium chloride is Sodium chloride is white when it is pure.
It appears as transparent or translucent cubic crystals. The melting point of sodium chloride is o C, and the boiling point is o C. It is well soluble in water. In the crystal structure of sodium chloride, each ion is surrounded by six ions of opposite charge.
These ions are located in a regular octahedron structure. Figure 1: Crystal Structure of Sodium Chloride. Sodium chloride is hygroscopic. This means it can absorb water vapor from the air when exposed to the atmosphere. This compound is essential for us to maintain the electrolytic balance in our body. It is also used to preserve some food items.
Sodium iodide is an inorganic chemical compound composed of sodium ions and iodide ions. The chemical formula of this compound is NaI. Thank you! Your comments have been successfully added.
However, they need to be checked by the moderator before being published. Choose subject Choose category Related Questions 1. Calculate the pH of a 0. How many mLs of H2 gas, collected by water displacement, are produced by the reaction of 0. Calculate the equilibrium contac 5.
Calculate the percentage by mass of the element adipic acid, C6 H10 O4 6. Test for sulfate ions Add a few drops of dilute hydrochloric acid, then a few drops of barium chloride solution.
Test for halide ions Add a few drops of dilute nitric acid, then a few drops of silver nitrate solution. Salt Test Observation Inference A Flame test Yellow flame colour A Dilute nitric acid and silver nitrate solution added White precipitate forms B Dilute sodium hydroxide added Blue precipitate forms B Dilute hydrochloric acid and barium chloride solution added White precipitate forms C Dilute nitric acid added Brief bubbling, limewater turns milky C Dilute sodium hydroxide added, then warmed Smelly gas produced that turns damp red litmus paper blue Analysis Use the results to identify the ions present in each salt, and then to name the salts.
Question Identify salt A using the results in the table. Reveal answer up. Chloride, Cl -. Bromide, Br -. Iodide, I -. Flame test. Yellow flame colour. Dilute nitric acid and silver nitrate solution added. White precipitate forms. Dilute sodium hydroxide added. Blue precipitate forms. Dilute hydrochloric acid and barium chloride solution added. Dilute nitric acid added. Brief bubbling, limewater turns milky.
Dilute sodium hydroxide added, then warmed. Smelly gas produced that turns damp red litmus paper blue. Barium chloride solid. Harmful if inhaled and toxic if swallowed. Only use dilute solutions supplied by the teacher.
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