question archive Post Lab Questions: 1
Post Lab Questions: 1
Subject:ChemistryPrice: Bought3
Post Lab Questions: 1. Based on your observations with the addition of silver nitrate after distillation, explain why or why not the separation of saltwater was successful. If the distillation was not successful, provide potential sources of error during your distillation. 2. Explain why the salt does not distill over with water ( hint: step 7 under distillation). 3. Consider the following distillation scenario: - A colorless liquid begins to distill at 84.0 Celsius. The entire liquid distills into a collection flask at a temperature of 84.0 Celsius. No residue (solid) is left in the original flask. - Based on the distillation information and your knowledge of liquid elements, is the substance being distilled an element, compound, homogeneous mixture, or heterogeneous mixture? Explain your reasoning. 4. Image a student keep heating the dry salt to its melting point. At the melting point, could the student separate the sodium from the chloride? Explain why or why not? 5. What is the purpose of dissolving the sand/salt mixture in deionized water? Explain your answer. 6. If the percentage of sand in the mixture was much lower than expected and the percentage of salt was greater than expected, what is a source of experimental error that could cause this?
