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AIMIdentify anions present in various salts by chemicals testing

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Introduction

CHEMICALS TESTS FOR ANIONS AIM Identify anions present in various salts by chemicals testing APPARATUS Spatula Test tubes and racks Pipettes Chemicals used Hydrochloric acid Nitric acid solution Barium chloride (harmful) Silver nitrate solution Metal salts used for testing Potassium chloride (KCI) Iron chloride (FECI3) Sodium sulphate (NASO4) Calcium carbonate (CACO3) Lead carbonate (PBCO3) Tap water RISK ASSESMENT Potassium chloride Explosive when mixed with combustion materials. Never use fabric gloves to handle substance. Harmful if inhaled or swallowed. Solution labelled if stronger then 2m .it may cause your eyes and skin to irritate. These substances are dangerous with material like sugar, wood, clothes and etc. ...read more.

Middle

Then get it checked by doctor. METHOD * Put potassium chloride salts in a test tube using a spatula. * Add few drops of nitric acid using a pipette. If the salt fizzes (gives gas off), record the result in the table below and add acid drops 1 by 1 until it no longer fizzes. * Add distilled water to 1cm depth. Mix well. * Add silver nitrate using a clean pipette. Record the results. * Put the same salt into another test tube. Using a spatula. * Add few drops of hydrochloric acid using a clean pipette. if it fizzes (gives off gas) ...read more.

Conclusion

NO FIZZ BUT PECEPITATE Lead carbonate FIZZES NO FIZZ PECEPITATE AND FIZZES PECEPITATE Tap water NO FIZZ FIZZES NO FIZZ NO FIZZ CONCLUSION After all the chemical experiments I found out which chemicals fizzes and precipitate when it is mixed with other chemicals as l have shown above in the table. As you see above that when nitric acid is mixed with calcium carbonate it fizzes so as lead carbonate and when mixed with hydrochloric acid it fizzes as well because it has carbonate material that makes it fizz. Where as some the material are not fizzing when they mixed with the acid because they don't get those chemicals, which make them fizz. ?? ?? ?? ?? ATIF ESHAQUE KAMAL 1 ...read more.

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