Week 3 Chem Lab report

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Chamberlain College of Nursing *

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120

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Chemistry

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Feb 20, 2024

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docx

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CHEM120 OL, Week 1 Lab Name: Ashton Alexander OL Lab 1: Chemistry Safety and Atomic Structure: Assess the possibility of life on other planets Learning Objectives  Identify the hazards posed by chemicals and how to handle them  React quickly and save lives in case of a fire emergency  Use the CAS numbers to plan your experiment  Understand how to dispose of halogenated and non-halogenated waste  Lookup H and P phrases in the safety data sheet  Safely use a chemical fume hood  Explain the concept of an atom  Explain the properties of the basic subatomic particles: protons, neutrons, and electrons  Define the atomic number and atomic mass  Define isotopes  Identify the basics of the quantum atomic model and describe the significance of the four quantum numbers Dangers in the lab In the Chemistry Safety lab, you’ll learn to identify the hazards posed by the different chemicals that you are using, which is a very important step in the planning of every experiment. Atoms and the subatomic particles Everything you see around you is made up of atoms, and all atoms consist of subatomic particles. In the Atomic Structure simulation, you will learn the names and properties of the basic subatomic particles and understand how changing the number of electrons may charge an atom either positively or negatively. Identify different elements from the periodic table As a part of your mission, you will be teleported to an exoplanet to explore on your own, collect samples and come up with observations regarding the presence of life on the planet. Back in the laboratory, you will investigate the properties of the elements you brought back from the exoplanet. The periodic table will be close by to advise and guide you.

CHEM120 OL, Week 1 Lab Name: What is an isotope? In order to understand the main properties of an isotope in the Atomic Structure simulation, you will use the holo-table. The quantum model and quantum numbers At the end of the simulation, you will be introduced to the quantum mechanical model of an atom and the four quantum numbers that provide all the necessary information to describe the orbits of the electrons around the nucleus. Part 1: Complete Labster Lab Chemistry Safety Complete all activities and answer all questions within the lab and then complete the questions below: 1. Look up an MSDS of the chemical HCl. What are the major hazards and what precautions would you take when handling this chemical? I chose Methanol. Methanol is a highly flammable liquid and vapor. Methanol is toxic when swallowed, in contact with your skin, or if inhaled. Also, Methanol can cause damage to organs via dermal or oral interaction. I would enact the following precautions. - Keep Methanol away from heat, sparks, open flames, or hot surfaces (including the prohibition of smoking). - Also, I would keep its container sealed. - Wash exposed skin thoroughly after handling. - Refrain from eating or drinking while in the presence of the chemical. 2. Why is proper waste disposal important in a lab setting? Improper disposal of laboratory waste can contaminate soil, water, and air, which could lead to pollution and destruction of ecosystems. This is why we used organic solvents to dispose of our waste when in the lab. Also, properly disposing of chemicals will ensure the safety of the next person who comes behind us for experimentation. 3. Why is the proper usage of personal protective equipment (PPE) key to a safe lab experience? Proper PPE is required as it helps minimize the chances of skin, oral, or any other bodily contact. PPE is the final protective barrier between the tester and the hazardous substances.

CHEM120 OL, Week 1 Lab Name: Part 2: Complete Labster Lab Atomic Structure: Assess the possibility of life on other planets Complete all activities and answer all questions within the lab and then complete the activities below 1. Purpose: Describe in complete sentences and in your own words, the purpose of this experiment. The purpose of this experiment was to help explore the essential concepts of atomic structure. This virtual lab was intended to help the audience understand the properties and behaviors of subatomic particles, such as protons, neutrons, and electrons. 2. Observations: Record three observations from the simulation. I. Our bodies are mainly made up of atoms of the elements hydrogen, nitrogen, and oxygen. On average, the body has seven octillion atoms. II. A nuclear symbol has a charge number, which tells us the difference between the number of protons and electrons. III. Different patterns of xenon and krypton isotopes on the surface of Mars help us to understand the crusts of the planet. 3. In your own words, explain the terms below: a. Ion: When an atom has different numbers of protons and electrons, we call it an ion. b. Isotope: Atoms with the same number of protons but different numbers of neutrons are Isotopes. Since these atoms have the same amount of protons, they have the same atomic number and are of the same element but just have varying mass numbers due to the number of neutrons not mirroring one another. 4. Describe the three subatomic particles that make up atoms. Be sure that you include their locations within the atoms.

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CHEM120 OL, Week 1 Lab Name: a. Neutron: The heaviest subatomic particles, they live in the nucleus of the atoms and have no electrical charge. b. Proton: Almost as heavy as the neutron, but not quite as much. Together with neutrons, the protons make up the atom's nucleus- they have a positive electrical charge. c. Electrons: Orbit the nucleus, however, are not a part of it. They are the lightest subatomic particles, almost two thousand times lighter than protons. The electron’s charge is negative. 5. You have an atom of carbon with a mass number of 14. Determine the number of protons, neutrons, and electrons you would expect this atom to possess. I have determined the answer to be the following: a. Protons: 6 b. Neutrons: 8 c. Electrons: 6 6. Reflection: Consider what you learned from this simulation. Reflect on three to four key concepts that you learned in this lab exercise. How could the lessons learned in this virtual lab relate to a real world situation in the community/world or your future career? Be specific in your answer (this should require 5-10 sentences). I truly enjoyed this lab; through this lab, I was able to learn concepts relating to lab safety and how the role we play in this is beneficial to ourselves and our environments. Being nurses especially, we will be working with hazardous substances that could potentially harm us. As a prospective OR nurse, it’s important to wear proper PPE in expectation of the possibility of this. I would need to wear gloves to prep a surgical site with iodine; also, bodily fluids (like blood) could potentially splash into your eyes, so it's always good to wear protective eyewear. Also, I am thinking about going into forensic nursing, where knowledge of the composition of substances at the atomic level can be essential for analysis and identification. Therefore, I am so glad this lab helped to lay a nice foundation for this… I found isotopes especially interesting!! Grading Rubric:

CHEM120 OL, Week 1 Lab Name: Activity Deliverable Points Part I Complete Chemical safety simulation 10 Part II Complete Chemistry Safety and Atomic Structure simulation 10 Part III Complete lab report and answer questions  Purpose (1 point)  Observation (3 points)  Questions (6 points)  Reflection (5 points) 15 Total Complete all lab activities 35