Instructions: Objectives: 1. To determine the boiling point of a liquid‚ and 2. To determine the melting point of a solid. Materials Used: Matches Isopropyl (Rubbing) Alcohol 1-2 small rubber bands Thermometer Powdered Acetamide<br< stand beaker 2 closed-end capillary tubes (melting point tubes) 10-12 mm diameter test tube Heat source Discussion and Review: In this experiment we will examine additional physical properties of liquids and solids. Two of the more important physical properties
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in solids‚ liquids‚ gases‚ and plasmas. You can determine whether an object is a solid or not based on two characteristics. Solids have a definite shape and a definite volume. Solid’s particles are so close together that they cant move and that’s what keeps a solid a definite shape. Little motion can occur in the particle arrangement. Particles in liquids‚ however‚ can move more freely. The particles are close together but are not as tightly packed as solids are. Like solids‚ liquids have no definite
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Objective: The purpose of experiment of density determination is to determine the densities of regularly shaped object and irregular shaped solids as well liquids. Density equal mass over volume. Materials Used: Materials used in this experiment was a regular shaped object and irregular shaped object and a ruler to take the measurements of the object. A graduated cylinder and electric beam balance were used to measure the volumes and masses of the object. As well 5-20% concentrated were
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Ruan Solid Molecules are tighly packed and harder than liquids and gases. Examples: Ice‚ Coal‚ Salt Amorphous solid-a solid which has a disordered atomic structure. Examples: Glass‚ Rubber Liquids flowing freely but of constant volume. Examples: Water‚ Mercury‚ Alcohol Viscosity-a measure of its resistance to gradual deformation by shear stress or tensile stress. Surface tension-the force that acts on the surface of a liquid and tends to minimize the surface area. Surface tension can
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Viscosity of sweetened water Avery Safley Introduction: Have you ever wondered why your honey comes out of the bottle so slow? The answer to this is viscosity. Viscosity is the resistance of a liquid to flow. Every liquid exhibits this resistance to some degree. Therefore the more resistance shown‚ the higher the viscosity. It can be thought of as fluid friction‚ just as solids show friction between other solids. This friction is caused by the molecules within the substance. Viscosity is
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a body in a liquid than in the air? ~ We know that‚ Upthrust =Density of fluid*acceleration due to gravity*Immersed volume of the body From the realtion above‚ it is clear that upthrust given by a fluid to a body is directly proportional to the density of the fluid. Also‚ as a matter of fact‚ the density of air is less than that of liquid. So‚ the liquid provides greater amount of upthrust than the air does. This implies that a body loses its weight greater in air than in the liquid. Therefore
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-How plants get liquid and minerals- Flowers absorb liquid through their roots‚ which are attached to xylem vessels. Xylem vessels are tubes that can expand through several feet of tissue and be .7mm in diameter. Their walls are thickened with cellulose deposits. Xylem bring water up to the leaves and petals of the plant. Even without contact with the roots‚ the xylem can still absorb water. Because of this‚ a cut flower usually doesn’t die for a couple days (as long as it is placed in water of
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The samples were categorized as liquids and solids. Under the liquid samples were the subcategories of water and liquids other than water. Subcategories for solid samples were regularly-shaped and irregularly-shaped. All in all there were seven samples‚ namely water‚ isopropyl alcohol‚ coconut oil‚ wooden block‚ marble‚ pebbles‚ and an unknown liquid sample. For the density of water‚ a clean and dry 100ml graduated cylinder was weighed and 50ml of water was added into the graduated cylinder. The
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between the two fluids. The fluid’s can be liquid or gas‚ and can be entered into the column either at the top or bottom. Figure 1 represents a typically layout used for fluidization. figure 1: Typical packed column set up used for fluidisation A packed column is constructed using a metal‚ glass‚ ceramic or plastic shell preferably with a corrosion resistant lining. The column should be mounted as vertical as possible to promote even liquid distribution. The packing material or bed
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LET’S START WITH COPPER CHEMISTRY REPORT 2012 INTRODUCTION: The law of conservation of mass means that the atoms of an object cannot be created or destroyed‚ but can be moved around and be changed into different particles. This law says that when a chemical reaction makes two different atoms into a new product‚ the mass will be the same. Knowing this the mass of the copper should be the same at the beginning and at the end of the experiment. In this investigation we will see
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