apparatus 2. To study and the significance of Rf values 3. To test various food colorings and to calculate their Rf values 4. To compare measured Rf values with standard Rf values 5. To separate mixtures of food coloring into their components 6. To identify the components of mixtures by means of their Rf values Materials / Apparatus: See “Health Chemistry Lab Experiments” page 24-29 ** Substitute capillary tubes for stirring rods** Procedure: See “Health Chemistry Lab Experiments” page 24-29 DATA
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Brooke Thomas September 13‚ 2012 Separating Salt and Sand Lab Report Separating components of a mixture of salt and sand and calculate the mass of each. Salt is soluble and sand will sink to the bottom‚ you can separate the rest with filtering and distillation (boiling). If salt and sand are a mixture‚ then we can separate them by physical processes. Materials Ring with ring stand Funnel Wire triangle Stirring rod Filtering paper Beakers (400mL and 250mL) Rinse bottle Evaporation
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Takes the shape and volume of container. | Shape | Definite shape | Takes the shape of the container. | | Compressibility | Negligible compressibility. | Negligible compressibility | High compressibility. | 1.1.2 The living and non-living components of the earth contain mixtures * Identify the difference between elements‚ compounds and mixtures in terms of particle theory The Particle Theory: “All matter is made up of small‚ indivisible particles called atoms that are continuously moving”
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Chemistry Syllabus 1. The living and non-living components of the Earth contain mixtures * * Identify the difference between elements‚ compounds and mixtures in terms of particle theoryElements are substances made of one kind of atomCompounds are substances made of more than one atom chemically bonded. Mixtures are impure substances that can contain more than one kind of atom that are not chemically bonded. | * Identify that the biosphere‚ lithosphere‚ hydrosphere and atmosphere
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the concept of the watch design. As a design team we had to make sure that we incorporated in main components of the watch such as the card reader‚ map‚ timer‚ real location cheekier‚ place name‚ and the DNA checker. After many months of brainstorming our ideas and suggestions of what we think the watch should look like and make sure it was compatible with all the major components. After separating and breaking down all of the ideas into two groups we had to break down those two groups to the best
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IS MATTER AROUND US PURE matter Pure substance Element Compound Mixture Homogenous Heterogeneous colloid Suspension True solution MATTER Everything in the Universe is made up of MATTER PURE SUBSTANCE The substance which contains same kind of Atom or Molecule i] element A pure substance which contain same kind of Atom ii] compound A pure substance which contain same kind of Atom or Molecule but made up of different Atoms through a Chemical bound Mixture Mixture are constitutor
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the vapor is enriched in the low boiling point component and the liquid is enriched in the high boiling point component. The surfaces where condensation occurs are called theoretical plates. Separation is more efficient when there are more theoretical plates. Therefore‚ fractional distillation is more efficient in separating than simple distillation. Another new technique was gas chromatography. Gas chromatography is used to separate volatile components of a mixture. First‚ a small amount is draw
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Chemistry Summary The particle theory: 1. Matter is made of tiny particles 2. Particles of matter are in constant motion 3. Particles of matter are held together by very strong electric forces 4. There are empty spaces between the particles of matter that are very large compared to the particles themselves. 5. Each substance has unique particles that are different from the particles of other substances 6. Temperature affects the speed of the particles. The
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Title: Separation and Identification of the major components of common over-the-counter painkilling drugs Purpose: 1.To separate acetaminophen‚ aspirin and caffeine from painkilling drugs. 2.To determine the melting points of acetaminophen‚ aspirin and caffeine 3.To identify the separated components(acetaminophen‚ aspirin and caffeine) by thin-layer chromatography Apparatus and Reagents Used : 1. 4:1 (v/v) 1-Butyl ethanoate/ethanoic acid 2. 3M Sodium hydroxide solution 3. 3M Hydrochloric
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Chromatography: What makes those colors? The point of doing this project is to use paper chromatography to see which dyes are used in the coatings of your favorite colored candies. Chromatography is a technique for separating mixtures. Chromatography can be used to separate specific components from a complex mixture‚ based on molecular size or other chemical properties. It can also be used to identify chemicals‚ for example crime scene samples like blood‚ drugs‚ or explosive residue. Highly accurate chromatographic
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