Lab3-Precipitation Reactions in Solution-LabReport QAC

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Florida Atlantic University *

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2045L

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Chemistry

Date

Jun 9, 2024

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docx

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Lab 3 –Precipitation Reactions in Solutions– Lab Report C H M 2 0 4 5 L - D r . Y a v u z P e t r o w s k i The statement is: “I certify that this is my own work and I understand that if I am found to be in violation of the honor code, I will be subject to the highest penalty” Name: Victoria Alarcon Znumber: z23713337 PRELAB: Background: Please complete the following sections. Purpose of the experiment : In your own words, the purpose of the experiment including a brief description of the lab and the reason for doing the experiment (what we are trying to determine and how we will go about determining it). Explain the concepts we are investigating; explain why and how they are useful, how those concepts apply to the experiment; show relevant equations if you need to. This experiment aims to understand how chemical compounds in water solutions can form solid precipitates when combined. This experiment helps to determine if and how we can predict the result of these solids' formation, as well as how we can control these reactions. During this lab, we will mix different compounds into different solutions and observe any visible changes that might be visible; this will help us to determine which of these will result in a reaction.

Flow Chart: Complete experimental procedure for this experiment by using information provided in the power point and 360 experimental video in a flow diagram format. A flow chart indicates the procedure of how experiment is performed. The flow chart must be written in the correct flow chart format (box and arrow). Handwritten flow charts are not accepted. See the example of the flow chart in canvas module. Solutions and materials need to be set up: Toothpicks and well plate Add 2-3 drops of AgNO3 into each of the six numbered wells on the plate Next, add 2-3 drops of CuSO4 into the well labeled 1, then record your observation Next, add 2-3 drops CoCl2 into the well labeled 2, then record your observation Next, add 2-3 drops NaOHinto the well labeled 3, then record your observation Next, add 2-3 drops CNa2CrO4 into the well labeled 4, then record your observation Next, add 2-3 drops KlO3 into the well labeled 5, then record your observation Finally, record all of your data that you observed into your chart Clean up your station and properly discard of any waste.

Waste Collection: Type out the chemicals used in this experiment, and their hazards if applicable, and any other safety concerns associated with this experiment. You can search for the Materials Safety Data Sheet document on the internet to list hazards and safety concerns. You can add an extra row if you need extra space. Chemicals Safety Hazard AgNO3 (Silver Nitrate) Can stain skin, toxic if ingested or inhaled CuSO4 (Copper Sulfate) Toxic if ingested, can irritate eyes and skin which can lead to discomfort and redness, needs to be disposed of properly to prevent possible environmental contamination. CoCl2 (Cobalt Chloride) Can cause skin and respiratory irritation, prolonged exposure or ingestion can cause adverse health effects. NaOH (Sodium Hydroxide) Highly caustic and may cause severe burns when it comes into contact with the skin, eyes or mucous membranes Na2CrO4 (Sodium Chromate) Highly toxic and poses health hazards if ingested or inhaled, can have harmful effects on the respiratory system, and is very harmful to the environment and needs to be properly disposed of in order to avoid contamination. KlO3 (Potassium Iodate) Can cause enhanced combustion due to its oxidizing agent, causes irritation to the skin, eyes, and respiratory tract when it is not handled properly

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