REVIEWER 4TH.pptx
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The document discusses several scientific concepts including: 1) Avogadro's Law, Boyle's Law, Charles' Law, and the Ideal Gas Law, which relate the properties of gases including volume, pressure, temperature and moles of gas. 2) Sample problems demonstrate how to use these gas laws to calculate values such as final volume given initial conditions. 3) Avogadro's Law specifically relates the volume and amount of gas in moles. 4) The Ideal Gas Law combines these gas properties into a single equation. 5) Balancing chemical equations is also briefly discussed along with types of chemical reactions.
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- 2. Av ogadro's Law Ideal Gas Law Charles’ Law Boyle’s Law
- 3. where : • P₁ = initial pressure • P₂ = final pressure • V₁ = initial volume • V₂ = final volume
- 4. SAMPLE PROBLEM 1 A gas occupies 12.3 liters at a pressure of 40.0 mmHg. What is the volume when the pressure is increased to 120.0 mm Hg?
- 6. where : • V₁ = initial volume • V₂ = final volume • T₁ = initial temperature • T₂ = final temperature
- 7. SAMPLE PROBLEM 1 An inflated balloon with a volume of 0.75 L at 30 °C was placed inside the freezer where the temperature is -10 °C. Find out what will happen to the volume of the balloon if the pressure remains constant.
- 10. AVOGADRO’S LAW Where : • V₁ = initial volume • V₂ = final volume • n₁ = initial amount of gas in moles • n₂ = final amount of gas in moles
- 11. SAMPLE PROBLEM 1 A 7.25 L sample of nitrogen gas is determined to contain 0.75 mole of nitrogen. How many moles of nitrogen gas would there be in a 20 L sample provided the temperature and pressure remains the same.
- 13. IDEAL GAS LAW
- 14. IDEAL GAS LAW Where : • V = volume in liters • P= pressure in atm • T= temperature in Kelvin • n = moles • R = universal gas constant 0.0821 L. atm mol. K
- 15. SAMPLE PROBLEM 1 A sample of liquid acetone is placed in a 0.025L flask and vaporized by the heating to 75°C and 1.02 atm? Calculate the number of moles of the acetone?
- 18. TYPES OF CHEMICAL REACTIONS: *SYNTHESIS – THE GET TOGETHER *DECOMPOSITION- THE BREAK UP *SINGLE DISPLACEMENT- THE CHEATER *DOUBLE DISPLACEMENT- THE SWAP *
- 19. CO₂ + H₂O C₆H₁₂O₆ + O₂ Reactants Products C O H
- 20. Al + O₂ Al₂ O₃ Reactants Products Al O
Editor's Notes
- They are directly proportional to each other.
- Aluminum oxide Coefficient : Al 4,O 3, 2 al2 co3