Week_4_Lab-_Ideal_Gas_Law_and_Acids_and_Bases - Manuel

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Chamberlain College of Nursing *

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Chemistry

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Feb 20, 2024

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CHEM120 OL, Week 4 Lab Warren Carl Manuel OL Lab 7: Ideal Gas Law Learning Objectives Explain the physical concepts of temperature and absolute zero Define the relationship between pressure, volume and temperature in gases using gas thermometry Apply the Ideal Gas Law Give examples of acids and bases from everyday life Define pH and identify acids and bases using the pH scale Apply the Bronsted-Lowry definition of acids and bases to chemical compounds Describe the amphoteric and self-ionization capacity of water Calculate the pH of a strong acid and base in solution Assess whether a neutralization reaction will occur Evaluate the outcome of simple acid-base reactions Introduction Do you know that you can save a life using the ideal gas law? In the Ideal Gas Law simulation, you will define the physical concept of temperature and absolute zero. You’ll learn about the relationship between pressure, volume and temperature in gases using gas thermometry. Explore your workbench Your first mission in the Ideal Gas Law simulation will be to have a look at the equipment at your disposal and acknowledge what you would need for your experiment. Learn the roles of each piece of equipment and how they will play a part in your gas thermometry.
CHEM120 OL, Week 4 Lab Experiment with gas thermometry Handling extreme temperatures is not a hazard as long as you’re a part of this simulation! Observe the changes in the pressure of an ideal gas as you cool it down from the temperature of boiling water to the temperature of boiling nitrogen. You are lucky you’re in a virtual lab as this means you can speed up time for the pressure to reach equilibrium! You will have complete freedom to repeat the experiment with any amount of gas and to define the absolute zero temperature. Are you ready to apply the Ideal Gas Law and everything you learned in gas thermometry in order to assist the transfer of an organ for a transplant surgery? Report back to the paramedics Once you have completed your experiment and have collected all of your data, your final mission would be to share the results with the paramedics so that they can keep the organ safe and sound in the correct pressure and temperature conditions to make it all the way to the hospital. Acidic life How do acidic or alkaline foods affect the pH of our blood, and what does this even mean? Together with your lab assistant, Marie, you will explore different concepts of acids and bases, and investigate how alkaline foods can also contain acids. You will measure the pH of solutions, and dive into these to experience what happens at the molecular level. Salty mixtures In order to determine what reactions occur when you mix acids and bases of different strengths, you will have the freedom to mix these solutions and interpret the resulting salt products. And
CHEM120 OL, Week 4 Lab don’t worry if you make mistakes – in this virtual lab, you can just reset and start over! On-the- go quizzes will make sure you are up to speed, and you can always dive into the theory pages for more in-depth explanations. Corrosive everyday chemicals Acids and bases can be corrosive and very dangerous to handle. But they also play a fundamental role in all living things, in nature, and in the chemical industry. Will you be able to measure the acidity of various substances around you? Part 1: Complete Labster lab: Ideal Gas Law: Apply to Save a Life 1. Purpose: Describe in complete sentences and in your own words, the purpose of this experiment. The purpose of this experiment is to understand how the ideal gas law correlates to the relationship oof pressure volume and temperature. 2. Observations: Record three observations from the simulation. I. There are ways to find the temperature without using a tthermometer II. Dip the dipper back into boiling water III. Temperature increase will increase the activity within the container
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CHEM120 OL, Week 4 Lab 3. If the pressure of a fixed volume of gas decreased in a sealed container, what variable would you think changed? Did this variable increase or decrease? Increase activity of molecules will increase which will increase the temperature and pressure of the gas. 4. Why is it important to convert into units of Kelvin before using the Ideal gas law? Pressure and the volume of gas will depend on activity of the particles which is why we must convert into units of kelvin. 5. Using what you learned in this simulation, explain why compressed gas cylinders, such as those found in the hospital, typically contain a warning to not leave in sunlight or expose to heat. If the temperature rises then the pressure and the volume of the gas cylinder will increase which can cause it to explode. Part 2: Complete the Labster lab: Acids and Bases
CHEM120 OL, Week 4 Lab 1. In your own words, describe how to determine which substance acts an acid and which substance acts as a base in the forward direction of the following reaction: H 2 S + H 2 O ⇌ H 3 O + + HS - H2S acts as acid and donates protons. H2O acts as base which receives protons. 2. Predict the two products of the following neutralization reaction and label each product using acid/base terminology: HCl + RbOH → H2O + RbCl H2O + ClRb 3. In your own words, describe the relationship between proton (H + ) concentration, and pH. The lower the ph the higher the concentration og H+ protons and the higher the ph the the lower the H+ protons. Inversely related. 4. 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 have learned in this virtual lab related to a real world situation in the community/world or your future career? Be specific in your answer (this should require 5-10 sentences).
CHEM120 OL, Week 4 Lab This lab taught me a lot about the relationship between pressure, volume and temperature. More that temperature plays a huge role of change within the ideal gas law. I would be able to use this with in real life events like the lab portrayed. If This lab taught me about the relationship between pressure, volume, and temperature. Temperature plays a huge role of change within the ideal gas law. I would be able to use this with in real life events like the tab portrayed. If I were transporting either medication or an organ that needed to be at a certain temperature but my thermometer broke. I would be able to calculate the temperature but my manometer and the process of the ideal gas law . I were transporting either medication or an organ that needed to be at a certain temperature but my thermometer broke. I would be able to calculate the temperature by using a manometer and the process of the ideal gas law.
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CHEM120 OL, Week 4 Lab Grading Rubric:   Activity   Deliverable   Points   Part I Complete Ideal Gas Law simulation 10 Part II   Complete the Acids and Bases 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

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