please help answer these

"In this experiment, chromatography was used to analyze amino acids in solution. Standards were used to identify unknown amino acids in a mixture. Ascending layer chromatography with an isopropanol-based solvent was used to separate the amino acids, which were then detected with ninhydrin. The unknown mixture analyzed was found to contain aspartate and histidine. It was observed that hydrophobic amino acids were most mobile. This technique was shown to be an effective way of analyzing unknown mixtures of amino acids. A mechanism for ninhydrin binding to amino acids is proposed, based on observations from this experiment." 4. a. Based on the abstract above, what was the purpose of the experiment? Identify unknown amino acids in a mixture b. What were the key results found in the experiment? 5. Name 2 key features that need to be included in any graph. 6. What feature in Micros Word allow you to type sample calculations? 4 CHEM 1232 Spring 2022 7. What does the yellow square indicate on the NFA fire diamond? Safety and Writing 8. Under each image, label what the potential hazard would be when dealing with the substance