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CHEM-120 Unit 3 Lab: OL Lab 6: Solution Preparation: From Salt to Solution (GRADED)

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CHEM 120 OL, Week 3 Lab: OL Lab 6: Solution Preparation; From Salt to Solution Learning Objectives: Prepare an aqueous solution of a specific concentration from a pure salt Correctly use an analytical balance, a volumetric pipette, a volumetric flask, and a measuring cylinder Explain the relationship between molarity and mass concentration Introduction Prepare to become a solution champion! In this simulation, you will complete all the steps involved in preparing an aqueous solution of a given molarity from ammonium chloride – a water-soluble salt. Use that balance Your first mission will be to determine the exact amount of ammonium chloride needed for your solution. When the calculations are completed, you will move to your first workbench, where you’ll find an analytical balance. You will use this high precision instrument to obtain just the right amount of the substance. It’s a tricky procedure, but you’ll have unlimited time and attempts to get it right. Glassware and quantitative transfer Moving on to the second workbench, you will explore and determine what glassware will be appropriate for you to use. Your lab guide and mentor, Dr. One, will walk you through the process of preparing the solution. You will have the freedom to use the equipment as you like, but only by following Dr. One’s instructions will you be successful in making the right solution. To make sure you can always redo the essential steps of the process, Dr. One will provide you with a fantastic reset button, so you can try again if you make a mistake. Solve the preparation In the end, only by carefully ensuring that the right amount of water and ammonium chloride is used can you make the correct solution. Are you prepared for solving how to perform a Solution Preparation? Part 1: Complete the Labster Lab: Solution Preparation: From salt to solution Part 2: Report and Reflection Purpose: Describe in complete sentences and in your own words, the purpose of this experiment. Observations: Record three observations from the simulation. Answer the questions below: In this lab, you learned how to prepare solutions with a precise concentration. Where in your nursing career might this skill be needed? Which piece of glassware did you use to prepare your solution in this lab and why? Calculate how many grams of NaCl are required to make 100 mL of a 1 M NaCl solution. Show your work in the space below. 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).

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