Matter, Solutions, and Gas Laws Georgia Performance Standard: SPS2. Students will explore the nature...
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Transcript of Matter, Solutions, and Gas Laws Georgia Performance Standard: SPS2. Students will explore the nature...
![Page 1: Matter, Solutions, and Gas Laws Georgia Performance Standard: SPS2. Students will explore the nature of matter, its classifications, and its system for.](https://reader035.fdocuments.in/reader035/viewer/2022062716/56649dbc5503460f94aadc15/html5/thumbnails/1.jpg)
Matter, Solutions, and Gas LawsGeorgia Performance Standard:SPS2. Students will explore the nature of matter, its classifications, and its system for naming types of matter.
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Gas Laws1. Charles Law
• The direct proportion of the volume of a gas to its temperature (in Kelvin) if the pressure is at STP (standard temperature pressure)
• V1/T1 = V2/T2
2. Boyle’s Law
• The inverse variation of the volume of a gas with its pressure if the temperature and the number of particles are constant
• P1V1=P2V2
Larger volume, less pressure
smaller volume, pressure goes up
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Matter
• Matter is anything that has mass and takes up space
• When matter is not the same throughout it is called heterogeneous
• A mixture is two or more substances that do not combine chemically (they keep their own properties)
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Properties of Matter
• Physical Property- a characteristic of a material that you can observe without changing its identity.
• Ex.- Color, shape, size, magnetic quality, malleability, ability to flow…
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What are the physical properties of these items?
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• During a Physical Change the internal makeup of a substance does not change.
• Ex.- Freezing, Melting, Boiling, condensing, cutting into, distillation.
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Distillation• physical change• The process of
separating a mixture
by its boiling point
Examples:
Making alcohol, separating petroleum, or salt water
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Petroleum: Fractional DistillationOil was formed from the remains of animals and plants that lived millions of years ago. Over the years, the remains were covered by layers of mud. Heat and pressure from these layers helped the remains turn into what we today call crude oil . The word "petroleum" means "rock oil" or "oil from the earth."
Other products made from petroleum include: ink, crayons, bubble gum, dishwashing liquids, deodorant, eyeglasses, records, tires, ammonia, and heart valves.
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Other materials made from petroleum
Solvents Diesel Motor Oil Bearing Grease Ink Floor Wax Ballpoint Pens Football Cleats Upholstery Sweaters Boats Insecticides Bicycle Tires Sports Car Bodies Nail Polish Fishing lures Dresses Tires Golf Bags Perfumes Cassettes Dishwasher Tool Boxes Shoe Polish Motorcycle Helmet Caulking Petroleum Jelly Transparent Tape CD Player Faucet Washers Antiseptics Clothesline Curtains Food Preservatives Basketballs Soap Vitamin Capsules Antihistamines Purses Shoes Dashboards Cortisone Deodorant Footballs Putty Dyes Panty Hose Refrigerant Percolators Life Jackets Rubbing Alcohol Linings Skis TV Cabinets Shag Rugs Electrician's Tape Tool Racks Car Battery Cases Epoxy Paint Mops Slacks Insect Repellent Oil Filters Umbrellas Yarn Fertilizers Hair Coloring Roofing Toilet Seats Fishing Rods Lipstick Denture Adhesive Linoleum Ice Cube Trays Synthetic Rubber Speakers Plastic Wood Electric Blankets Glycerin Tennis Rackets Rubber Cement Fishing Boots Dice Nylon Rope Candles Trash Bags House Paint Water Pipes Hand Lotion Roller Skates Surf Boards Shampoo Wheels Paint Rollers Shower Curtains Guitar Strings Luggage Aspirin Safety Glasses Antifreeze Football Helmets Awnings Eyeglasses Clothes Toothbrushes Ice Chests Footballs Combs CD's Paint Brushes Detergents Vaporizers Balloons Sun Glasses Tents Heart Valves Crayons Parachutes Telephones Enamel Pillows Dishes Cameras Anesthetics Artificial Turf Artificial limbs Bandages Dentures Model Cars Folding Doors Hair Curlers Cold cream Movie film Soft Contact lenses Drinking Cups Fan Belts Car Enamel Shaving Cream Ammonia Refrigerators Golf Balls Toothpaste Gasoline
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Properties of MatterChemical Property-- describes its "potential" to
undergo some chemical change or reaction because of its composition.
• Chemical properties can only be observed by changing a substance's chemical properties. Examples: Flammability, Reactivity, etc
• Once a chemical change has occurred a NEW SUBSTANCE OR SUBSTANCES is/are produced with totally new physical and chemical characteristics.
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Examples of Chemical Changes
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Chemical Changes
+ =
•Soft, silver metal•Reacts violently with water
•Green gas• toxic
•Love it on French fries•Need it to live
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Conservation of Mass• During a chemical reaction, energy is
taken in or given offThe Law of Conservation of Mass states
mass is neither created or destroyed.• The mass of the reactant(s) is equal to the
mass of the product(s).
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Composition of Matter Main Types of Matter:
1. Pure Substances: either elements or compounds.
• Has the same composition throughoutA. Elements – all atoms in the substance are the same
• 90 elements found in nature• 20+ made in laboratories• Atom is the smallest particle of an element
that still retains the characteristics of that element
• Examples: copper, gold, hydrogen, carbon
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2. Compounds– consisting of two or more different elements bonded together (chemically combined) in a fixed Mass ratio that can be split into simpler substances.
• Examples: water (H20), carbon dioxide (CO2), sugar (C6H1206), hydrochloric acid (H2S04),
salt (NaCl)
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3. Mixtures:• 2 or more materials combined together
BUT NOT CHEMICALLY combined, they still retain their own chemical makeup.
• Unlike compounds, mixtures do not always contain substances in fixed proportions.
Heterogeneous
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Types of Mixtures1. Heterogeneous Mixtures• A type of mixture in which parts of the mixture are noticeably
different from one another• Usually can pick out the “different” particles• Hetero means “different” • 2 Main Types:
– Suspension– Mixture
Examples: salad, hotdog, hamburger, marble…
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Suspension• Heterogeneous mixture between liquids or
liquids/solids that will separate out upon standing.
• Examples: Italian dressing, pond water, oil and vinegar
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Types of Mixtures2. Homogeneous Mixture• a mixture that contains 2 or more gases, liquids
or solids blended consistently throughout.• Hard to pick out individual particles (looks the
“same” throughout)• Homo means “same”
Two Main Types:A. SolutionsB. Colloids (most of the time)
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Solutions
• A homogeneous mixture where one material is indistinguishable in another
• the dissolved particles are so small you can’t see them
Alloy-- a solution of two or more elements, usually metals.
• brass– zinc and copper• stainless steel– copper, nickel and iron• Pewter– lead, copper, tin• White gold– nickel, palladium and gold• Rose gold – copper and gold• Bronze– aluminum and copper
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Colloid• A homogenous mixture that contains some
particles that are larger in size, but still evenly distributed throughout
• Does not settle upon standing unless it has gone bad (e.g. milk)
Tyndall Effect– dispersion of light due to larger particles… causes milky/cloudy color in colloids…can be used to determine whether something is a solution or colloid
Example… milk, fog, peanut butter, butter, mayonnaise, yogurt…
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Parts of a Solutions1. Solute– BEING DISSOLVED the
particles dissolved in the solution• Examples: sugar, Koolaid mix, salt
2. Solvent–DOES DISSOLVING the substance in a solution in which the particles dissolve
• Usually water
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Solubility• The maximum of amount of solute that normally
dissolves in a given amount of solvent at a certain temperature.
• Solubility chart shows how much of a substance will dissolve at a particular temperature.
Soluble--- will dissolve in• Salt is soluble in water.• Sugar is soluble in water.Insoluble– will NOT dissolve in• An oil is insoluble in water.• Ink is insoluble in water.
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Solutions
• Solutions are concentrated when they contain a lot of solute
• Solutions are dilute when they contain a small amount of solute
• Solubility is the ability of a substance to dissolve
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Rate of Solution
• Stirring- agitating the solution causes solute particles to come in contact with solvent particles
• Heating- higher temperature increase the movement of particles to speed dissolving
• Increasing Surface Area- More solute comes in contact with solvent e.g. granulated sugar versus sugar cubes
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Solubility• Unsaturated- Solution contains less than the
maximum amount of solute that can dissolve in the solvent at a given temperature
• Saturated- Solution that contains the maximum amount of solute that can dissolve at a given temperature
• Supersaturated- Solution that contains more solute that can dissolve at a given temperature – Only stays supersaturated when condition
change e.g. heated then cooled– Otherwise the unusable solute will stay at the
bottom
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Solubility Curves• A solubility curve is a graph of a solute
usually dissolved in 100 g of water• Water is considered the universal solvent • Solubility-Ability to dissolve• Looking at the solubility curve we see that the
type of solute will make a difference in how much is dissolved.
• Solubility – the amt of solute that can dissolve in a solvent (100 mL of water)
SOLUBILITY CURVES AREALWAYS ON THE GRAD TEST!!!
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Solubility chart various materials