Your teacher asked you to use your knowledge of precipitation reactions to test the quality of water in the local river. You are provided with the following chemicals: AgNO3, BaCl2, dilute HNO3 8.1 Which chemical would you choose to test for the presence of carbonates (CO3-2)? (1) 8.2 Use a balanced chemical equation to show … Read more
Learners investigated the relationship between the concentration of a silver nitrate (AgNO3) solution and its conductivity at a constant temperature. They set up the apparatus, as shown below, and recorded the current. The initial reading of the ammeter was taken before anhydrous AgNO3 was added to distilled water. The anhydrous AgNO3 was added to 200 … Read more