This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
To separate salt from a mixture of salt and sand, you can use the differences in their physical properties: salt is soluble in water, while sand is insoluble. Here's how you can do it: 1. Dissolving the salt: Add water to the mixture of salt and sand in a beaker. Stir the mixture thoroughly with a stirring rod to allow the salt to dissolve completely in the water, forming a salt solution. The sand will remain undissolved at the bottom. 2. Filtration: Set up a filtration apparatus. Place a filter funnel with filter paper into the neck of another clean beaker or conical flask. Pour the mixture slowly into the filter funnel. The sand (the residue) will be trapped by the filter paper, while the salt solution (the filtrate) will pass through the filter paper and collect in the beaker below. 3. Evaporation: Transfer the salt solution from the beaker into an evaporating dish. Gently heat the evaporating dish using a Bunsen burner, tripod stand, and gauze mat. The water will evaporate as steam, leaving behind solid salt crystals in the evaporating dish. Stop heating once all the water has evaporated and only dry salt remains. Diagram Description: A well-labeled diagram would show three main stages: Stage 1: Dissolving A beaker containing a mixture of sand and salt. Water being added to the beaker. A stirring rod inside the beaker, showing the mixture being stirred. Labels: "Sand and Salt Mixture", "Water", "Stirring Rod", "Salt Solution", "Undissolved Sand". Stage 2: Filtration A filter funnel with filter paper placed in its cone. The filter funnel is supported by a retort stand or placed in the neck of a conical flask/beaker. The mixture from Stage 1 being poured into the filter funnel. Sand collected on the filter paper (labeled "Residue: Sand"). Salt solution dripping through the filter paper into the conical flask/beaker below (labeled "Filtrate: Salt Solution"). Labels: "Filter Funnel", "Filter Paper", "Retort Stand", "Conical Flask/Beaker". Stage 3: Evaporation An evaporating dish containing the salt solution from Stage 2. The evaporating dish placed on a gauze mat, which is on a tripod stand. A Bunsen burner heating the evaporating dish from below. Steam rising from the evaporating dish (labeled "Water Vapor"). Solid salt crystals forming in the evaporating dish as water evaporates (labeled "Recovered Salt"). Labels: "Evaporating Dish", "Gauze Mat", "Tripod Stand", "Bunsen Burner". What's next? 📸