Villanueva‚ Justeen Wong Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment has been divided into 4 set-ups‚ first was the solid-liquid extraction‚ next was the liquid-liquid extraction‚ then the sublimation and last was the melting point determination. The solid-liquid and liquid-liquid extraction were both done during the first meeting‚ the DCM layer was filtered and dried in the evaporating dish and kept inside the locker. The dried was light green‚ somewhat
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surface of a liquid is observed to be elevated or depressed where it comes into contact with a solid. Ability of a liquid to flow in narrow spaces without the assistance of‚ and in opposition to‚ external forces like gravity Capillary action is sometimes called capillarity‚ capillary motion‚ or wicking Capillarity Types:- Capillarity Rise:- The upward movement of a liquid against the force of gravity inside narrow spaces and thin tubes is called capillary rise . This property of liquid is called
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solubility. 2. What are the three properties of matter? The three properties of matter are gas‚ solid‚ and liquid. 3. What is matter made up of? Matter is made up of tiny particles. 4. Compare and contrast the movement of particles in solids‚ liquids‚ and gases. Solids: They move back and forth. They do not change places with each other‚ and they have a definite shape. Liquids: Changes shape‚ does not have a definite shape‚ takes up a definite amount of space‚ and will take up the
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(¡ÆC) Observation Unmelted White salt First liquid appear point 122 Grainy and shiny white Becoming all liquid 125 Clear B. Melting point of unknown #42 1st trial Temperature (¡ÆC) Observation Unmelted Shiny light yellow crystal First liquid appear point 99 Grainy yellow Becoming all liquid 101 Clear 2nd trial Temperature (¡ÆC) Observation Unmelted Shiny light yellow crystal First liquid appear point 95 Grainy yellow Becoming all liquid 97 Clear C. Melting point of mixture (Unknown
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solution. Air is an example of a gaseous solution. When dry is made up of oxygen gas dissolved in nitrogen gas. b. Liquid Solution- contain a liquid solvent in which gas‚ liquid‚ or solid is dissolved. Water is the most common liquid solution. Many things can be dissolved in it. Table salt is an example of a solid dissolved in a liquid. A liquid and a gas can also be dissolved in a liquid solution. c. Solid Solution- is a mixture of solids spread equally throughout one another. Metal is an example
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Matter In Our Sourroundings Important Questions Not for coping to note Q. 1. What is a matter? Answer : Anything that occupies space and has mass is called a matter. For example:- Chalk‚ Milk‚ Sugar etc. Q. 2. Sodium chloride and sugar have same appearance. Are they same or different? Answer : They have different physical and chemical properties. So‚ they are different. Q. 3. All substances around us are alike. How? Answer : All substances can occupy space and have weight.
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DESIGN LAB Factors Affecting the Solubility of a Solid in a Liquid In this experiment‚ my goal is to determine the affect of temperature in the solubility of a solid in a liquid. Research Question: How does the change in the temperature affects the solubility of a solid in a liquid? Independent variables: Temperature of the Solution Dependent variables: The solubility of the solid substance Controlled Variables: * The pressure of the room. * The mass of zinc chloride
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purify all types of liquids from impurities. Filtered oil is considered to be completely pure and fresh and good for health benefits. After the filtration process of oil is done‚ refining it is not compulsory. All kinds of oil seeds do not require refining and are known for their edible properties. However‚ oil that is extracted from cotton seeds require refining or neutralizing. In order to filter the extracted oil from impurities‚ a special type of equipment is used.The liquid that has to be
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Matter‚ Solutions‚ and Phase Changes Unit 1. What is matter? Anything that takes up space (volume) and has mass 2. Explain how to classify matter. (Homogeneous‚ Heterogeneous‚ Mixture‚ Pure Substance)? HOMOGENEOUS Matter that is made up of the same or alike particles Can’t see what makes it up Looks uniform HETEROGENEOUS Matter that is made up of different types of particles Can see what makes it up Mixture A material made up of two or more substances that can be easily separated
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Detailed Lesson Plan in Science IV (Soil Erosion) I. Learning Objectives a. Identify the agents of soil erosion. b. Explain how each agents cause erosion. c. Perform related activities enhancing knowledge about soil erosion. d. Enumerate ways and means on how to help prevent soil erosion. II. Subject Matter a. Topic: Soil Erosion b. References: c. Concepts: Soil Erosion and its Effects d. Sciences Processes: Observation‚ Experimenting‚ Analysing e. Materials: 2 large
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