were to determine the densities of some solids and liquids and to apply the rules of significant figures in computing laboratory data. For liquids‚ a dry‚ empty 100-ml graduated was weighed. Fifty ml of water was placed in it‚ then weighed again. The same was done for other liquid samples. The mass of the liquid sample was determined by subtracting the mass of the empty graduated cylinder with the mass of the cylinder and liquid. For the density of solids‚ the rectangular block was weighed and
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Filtration is a process where solids and liquids can be separated. The liquid that passes through the filter paper is called a filtrate. Evaporation is a process where two liquids or a solid mixed into a liquid can be separated. To separate two liquids mixed together‚ the liquid
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Filtration Filtration is a mechanical or physical process to separate solid particulates from fluids Filtration is a technique used to separate a solid from a liquid. The solid is separated from the liquid phase by passing the mixture over a filtering media. Filtering media is characterized by being chemically inert to the mixture‚ and having small pathways for the liquid to pass through‚ but these pathways should be smaller than the solid particle size. Filtering media can be prepared using paper‚ fritted-glass
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senior one (S1) BRIEF DESCRIPTION OF THE UNIT: This unit deals with: • Methods of separating mixtures. • Methods of drying solids. • Methods of determining purity of solids and liquids. LEARNING OBJECTIVES Students should be able to: ➢ Define the key terms such as solution‚ solvent‚ solute‚ filtrate‚ residue‚ immiscible and miscible liquids‚ distillate‚ sublimation‚ melting and boiling points and chromatography. ➢ Use melting and boiling points to differentiate between
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characteristics of states of matter are given in the following table. S. No. | Solid state | Liquid state | Gaseous state | 1. | Definite shape and volume. | No definite shape. Liquids attain the shape of the vessel in which they are kept. | Gases have neither a definite shape nor a definite volume. | 2. | Incompressible | Compressible to a small extent. | Highly compressible | 3. | There is little space between the particles of a solid. | These particles have a greater space between them. | The space between
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(present in the smallest amount) and solvent (present in the largest amount) State of Solution State of Solvent State of Solute Example Gas Gas Gas Air Liquid Liquid Gas O2 in water Liquid Liquid Liquid Alcohol in water Liquid Liquid Solid Salt in water Solid Solid Gas H2 in Pd Solid Solid Liquid Hg in Ag Solid Solid Solid Ag in Au 3 The Solution Process • Substances that dissolve completely in one another are termed miscible. Immiscible substances do not dissolve completely
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According to the kinetic theory‚ both the particles in gases and the particles in liquids have kinetic energy. This energy allows the particles in gases and liquids to flow past one another‚ as shown in Figure 13.5. Substances that can flow are referred to as fluids. The ability of gases and liquids to flow allows them to conform to the shape of their containers. Figure 13.5 Both liquids and gases can flow. The liquid on the left is colored water. The gas on the right is bromine vapor. If a gas is
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The object of the lab conducted was to find the density of the substances given and to find what the unknown liquid and solid were. The process to finding what the unknown solid and liquid were‚ was to find the density and to conduct multiple trials so when the density is discovered‚ it is possible to compare the density found to another one in order to find the liquid or solid. Through finding the density of objects and substances‚ it is possible to find what the subject is that is
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heating of a solid that passes directly from the solid phase into the gaseous phase. The reverse process where a gas goes into the solid phase is called deposition or condensation. 2) Extraction: involves using a solvent that selectively dissolve one or more components from a solid mixture. 3) Decantation: involves the separation of a liquid from insoluble solid sediment by carefully pouring the liquid from the solid without disturbing the solid. 4) Filtration: involves separating a solid from a liquid
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compounds conduct electricity as: (3 points) Link: http://antoine.frostburg.edu/chem/senese/101/compounds/faq/print-properties-ionic-vs-covalent.shtml Solids? No Liquids? Yes Aqueous solutions (when the ionic compounds are dissolved in water)? Yes Do covalent compounds conduct electricity as: (3 points) Solids? no Liquids? No Aqueous solutions (when the covalent compounds are dissolved in water)? No Substance
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