06-01_task-3

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Chemistry © ACCESS Virtual Learning 2023 Name: Date: School: Facilitator: 6.01 Making a Solution (35 Points) Part 1: Parts of a Solution Complete the following. 1. Think of a solution that you encountered within the last few days. a. Describe the solution. (2 points) Sweet tea. Sugar dissolved into tea b. Explain why this substance is a solution and not another type of matter. (3 points) This mixure is a solution because, it cannot be separated once mixed together. c. Identify the solute(s) and solvent in the solution. (2 points) Sugar is the solute and tea is the solvent 2. The portion of the solution that is present in lower concentration is the (solute or solvent) solute. (2 points) 3. The portion of the solution that has the highest concentration is the (solute or solvent) solventt (2 points) 4. Explain how the dissolving of an ionic compound is different from the dissolving of a covalent compound. (5 points) Write your response below: When an ionic compound dissolves, its ions separate and disperse in the solvent, forming a solution. This is because ionic compounds are made up of positively and negatively charged ions that are attracted to each other. On the other hand, when a covalent compound dissolves, its molecules remain intact and disperse in the solvent. Covalent compounds are formed by sharing electrons between atoms, so their molecules stay together even in solution. The dissolving of an ionic compound involves the separation of ions, while the dissolving of a covalent compound involves the dispersion of intact molecules. 5. Why is water considered the universal solvent? (5 points) Write your response below: Water is considered the universal solvent because it can dissolve a wide variety of substances. This is due to its unique molecular structure and polarity. Water molecules are

Chemistry © ACCESS Virtual Learning 2023 composed of two hydrogen atoms bonded to one oxygen atom, creating a slightly positive charge on the hydrogen side and a slightly negative charge on the oxygen side. This polarity allows water molecules to attract and surround ions and polar molecules, effectively breaking them apart and dispersing them in the water. Part 2: Steps in Making a Solution Watch the video Dissolving of NH 4 Cl linked on the task page. 6. Is the dissolving of NH 4 Cl endothermic or exothermic? Support your answer with evidence from the video. (4 points) The dissolving of NH4Cl is an endothermic process. This means that it absorbs heat from its surroundings in order to dissolve. In the video, it was mentioned that when NH4Cl is dissolved in water, the temperature of the solution decreases. This temperature decrease indicates that energy is being absorbed from the surroundings, 7. Which graph best reflects the energy changes that take place in this process? Explain your response. (5 points) a. b. LibreTexts- Chemistry: 13.3 Solvation Process | Public Domain Write your response below: Graph 2; I say this because, it was a quicker process. 8. Using your own words and complete sentences, describe the process of dissolving an ionic compound into water. Include the three steps of the dissolving process and tell whether each step is endothermic or exothermic. (5 points) Write your response below:

Chemistry © ACCESS Virtual Learning 2023

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