COM312, ASU, Summer24 – Questions With Solutions.

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Activity In this activity, you will use this salts and solubility simulation to explore the solubility of water. Begin the activity by clicking the Table Salt tab. The upper faucet adds water to the... tank, and the lower faucet removes water. Shaking the salt shaker up and down adds table salt (sodium chloride) to the water. Part A Question Click and hold the salt shaker, and briefly shake it in all directions to sprinkle a little bit of table salt (sodium chloride) into the water. What happens to the salt crystals when they enter the water? The ions separate from each other and dissolve into the water. All of the salt crystals sink to the bottom of the container. The sodium ions dissolve while the chloride ions sink to the bottom. The ions separate and sink to the bottom of the container. PART B Continue to shake until no more salt will come out of the shaker. What happens to the last several crystals of salt that come out? The sodium ions dissolve while the chloride ions sink to the bottom. The salt crystals react with the water to form a new compound. All of the ions separate from each other and dissolve into the water. The salt crystals don’t dissolve in the water and fall to the bottom unchanged. Part C Question Pull out the blue handle on the water faucet at the top of the screen to add water to the tank until it’s full. What happens to the salt crystals in the bottom of the tank? With more water in the container, more salt crystals form and sink to the bottom. More of the salt dissolves because the additional water can hold more salt ions. The temperature of the salt crystals increases, causing their bonds to break down. The chemical reaction between the salt and water is accelerated. [Show More]

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