AIMIdentify anions present in various salts by chemicals testing

Important = If you spill any chemicals on your skin and eyes quickly wash it for it for 10 min and if you can still feel it keep it like that until you don’t feel anything. 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) ,record the result in a table and add more acid drops 1 by 1 until it no longer fizzes.
• Add distilled water to 1cm depth. Mix well.
• Put a few drops of barium chloride using a clean pipette. Record the results.
• Repeat steps 1 to 8 using the four salts.
• Put the tap water into 2 clean tubes which depth should be 1 cm. Put little drops of nitric acid using a clean pipette. Add a few drops off barium chloride solution into the test tube. Record the results.

RESULTS

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.