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Chem Trashketball : Semester 1 Benchmark Review

Chem Trashketball : Semester 1 Benchmark Review. Let ’ s Play. Final Challenge. Gas Laws. Solutions. Molar Mass. Stoichiometry and Units. Challenge. 100. 100. 100. 100. 200. 200. 200. 200. 200. 400. 300. 300. 300. 300. 600. 400. 400. 400. 400. 800. 500. 500. 500. 500.

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Chem Trashketball : Semester 1 Benchmark Review

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  1. ChemTrashketball:Semester 1 Benchmark Review

  2. Let’s Play Final Challenge Gas Laws Solutions Molar Mass Stoichiometry and Units Challenge 100 100 100 100 200 200 200 200 200 400 300 300 300 300 600 400 400 400 400 800 500 500 500 500 ???

  3. Gas Laws for 100 Part 1 A bag of hot cheetohs was opened and in a short period of time the cheetoh smell was detected across the room. This is due to: A being heavier than air and sinking to the floor. B being lighter than air and rising to the ceiling. C moving from low concentration to high concentration. D moving randomly and diffusing across the room. • Most of the elements on the Table are of this type, exhibiting properties of luster, electrical conductivity, ductility, and malleability. 100

  4. Gas Laws for 100 Part 2 A rugby ball is inflated with air to a pressure of 16pounds per square inch. The reason this pressure can be measured is: A collision of air molecules with the sides of the ball. B air molecules leaking out of the rubber. C the diffusion of air with the rubber. D sinking of air molecules to the bottom of the ball. • Most of the elements on the Table are of this type, exhibiting properties of luster, electrical conductivity, ductility, and malleability. 100

  5. Gas Laws for 200 – Part 1 • The unreactive, Group 18 elements. 200 Which of the following is true about the temperature 0 K? A It’s the temperature that water freezes. B It is the lowest possible temperature. C It is the temperature where all objects would cease to exist. D It is the highest possible temperature.

  6. Gas Laws for 200 – Part 2 • The unreactive, Group 18 elements. 200 A sealed syringe holds 22.4 L of gas at 2.00 atm, 0.0C. If the syringe is allowed to expand to 44.8 L what is the final pressure assuming the final temperature is 273C? A 0.500 atmB 1.00 atmC 2.00 atmD 4.00 atm

  7. Gas Laws for 300 – Part 1 • Elements 90-103 300 Standard Temperature and Pressure (STP) is defined as 0C and 1 atm. Another way to say this is: A -273 K and 15 atm. B 0 K and 760 kPa. C 273 K and 760 mmHg. D -273C and 760 Torr

  8. Gas Laws for 300 – Part 2 • Elements 90-103 300 Methane gas and oxygen were released at opposite ends of a glass tube. The gases will move toward the middle of the tube because the molecules are: A) Afraid of the air molecules. B) attracted to each other. C) in constant random motion. D) moving to a higher concentration.

  9. Gas Lawsfor 400 – Part 1 • The highly-reactive, Group 1 elements. 400 EXTRA EASY What is the approximate temperature in Kelvin of a room that is 5C? A -5K B 55 K C 234 K D 278 K

  10. Gas Lawsfor 400 – Part 2 • The highly-reactive, Group 1 elements. 400 EXTRA HARD 7 L of oxygen gas and 23 L of helium gas, both at 0oC and 1.0 atm, are pumped into a big ‘ol 10 L tank. What is the total pressure of the two gases in the tank, at 273 oK? A 0.042 atmB 3.0 atmC 2.0 atmD 6.0 atm

  11. Gas Laws for 500 – Part 1 • The highly-reactive, Group 17 elements. 500 Where polar bears live, the temperature can get as low as –55C. In Kelvin, this temperature would be A 172 K. B 208 K. C 292 K. D 308 K.

  12. Gas Laws for 500 – Part 2 • The highly-reactive, Group 17 elements. 500 When blowing stuff up in the lab, the gas produced is measured at a temperature of 1143 K. What is this temperature in Celsius? A 870C B 906C C 1380C D 1416C

  13. Gas Laws for 500 – Part 3 • The highly-reactive, Group 17 elements. 500 Mr. Astor heated a can to force some the air out of the can. When the can is flipped into water and cooled, it will crush because the pressure inside has __________ due to __________ molecules colliding against the surface. A increased; more B decreased; more C increased; fewer D decreased; fewer

  14. Solutions for 100 – Part 1 • This broad classification of elements consist of insulators, and are generally gases or brittle solids at room temperature. 100 What is the dissolving medium in a solution? A solvent B suspension C solute D colloid

  15. Solutions for 100 – Part 2 • This broad classification of elements consist of insulators, and are generally gases or brittle solids at room temperature. 100 The salt that is dissolved in water to make a solution is called the A sediment. B parts per million. C solute. D solvent.

  16. Solutions for 100 – Part 3 • This broad classification of elements consist of insulators, and are generally gases or brittle solids at room temperature. 100 In an aqueous solution, the dissolved particles are the A solute. B solvent. C solubility. D salivation.

  17. Solutions for 200 • These “stair-step” elements exhibit properties of both insulators and conductors. 200 58.5 grams of sodium chloride (NaCl) are dissolved in water to make 1000 mL of solution. What is the molarity (M) of the NaCl? A 0.0585 M B 0.50 M C 1.0 M D 6.5 M

  18. Solutions for 300 • Elements 58-71. 300 63 mg of botullin toxin (botox) were detected in 7 L of water. What is the concentration of the toxin? (Hint: 1 L = how many grams?) A 9ppm B 63 ppm C 441 ppm D 9,000 ppm

  19. Solutions for 400 – Part 1 • The Group 11 elements were often used in historical times as currency. Thermometers are made from mercury and solid titanium. A typical composition is 6.9 grams mercury and 75.0 grams of titanium. The mercury is called the A solvent. B solution. C solute. D dissolving medium. 400

  20. Solutions for 400 – Part 2 • The Group 11 elements were often used in historical times as currency. 400 A solution contains 8g of methanol(CH3OH) dissolved in 500 mL of water. The molar concentration is _____. A 0.016 M B 0.0032 M C 0.500 M D 4.0 M

  21. Solutions for 500 • The Group 11 elements were often used in historical times as currency. Daily Double! Bonus 500 points for getting this correct. What is the best determiner of intermolecular forces? A density B solubility C melting point D molecular mass E stoichiometry F aquafina G Mr. Astor H molarity 400

  22. Molar Mass for 100 – Part 1 • This Russian scientist is credited with inventing the Table, around the year 1870. 100 What is the molar mass of Perchloric acid (HClO4)? A 15 grams B 52grams C 99 grams D 100grams

  23. Molar Mass for 100 – Part 2 • This Russian scientist is credited with inventing the Table, around the year 1870. 100 Use the periodic table to calculate the molar mass of potassium hydroxide (KOH). A 3 g B 15 g C 32g D 56g

  24. Molar Mass for 200 • Mendeleev based his Table on this property of the elements. 200 How many moles are in 132 grams of carbon dioxide (CO2)? A 1 mole B 2 moles C 3 moles D 4 moles

  25. Molar Mass for 300 • The British scientist Henry Moseley modified Mendeleev’s Table, using this property of the elements. 300 1.8  1024 molecules of oxygen would contain approximately how many moles? A 3 B 4 C 32 D 128

  26. Molar Mass for 400 • This principle states that the properties exhibited by elements repeat at regular intervals. 400 What is the molar mass of NH3(OH)2

  27. Molar Mass for 500 • Using his Table, Mendeleev was able to predict the properties of these substances, without having any prior knowledge about them. 500 What are the units of Molar Mass, and when do we use them during stoichiometry problems?

  28. Stoichiometry for 100 • The general term that refers to the size of a neutral atom. 100 What are the units of Molarity (M) ?

  29. Stoichiometry for 200 • The general term that refers to the size of a neutral atom. 100 What are the standard units that we use for pressure, volume, and temperature?

  30. Stoichiometry for 300 • The general term that refers to the size of a neutral atom. 100 Grams (g) is the basic unit of mass. When you put a small m in front of the g, what is that unit called? Example: mg Another example is mL

  31. Stoichiometry for 400 • The general term that refers to the size of a neutral atom. 100 In the balanced equation, H2+ Cl2 2HCl, 2.0 g of hydrogen (H2) would require how many grams of chlorine (Cl2) to completely react? A 2.0 grams B 35.5 grams C 37.5 grams D 71.0 grams

  32. Stoichiometry for 500 • The general term that refers to the size of a neutral atom. 100 How many grams of nitrogen are needed to produce 68.1 grams of ammonia (NH3). N2 + 3H2 2NH3 A 28 grams B 56 grams C 112 grams D 224 grams

  33. Challenge for 200 • The general term that refers to the size of a cation or an anion. 200 • What is the mass of 3 moles of Helium, He?

  34. Challenge for 400 • The general term that refers to the size of a cation or an anion. 200 If all atomic and molecular motion stopped, the substance would be at:

  35. Challenge for 600 • The general term that refers to the size of a cation or an anion. 200 A sample of gas occupies 300 mL at STP. What is the temperature if the gas expands to 1800 mL at a pressure of 0.500 atm?

  36. Challenge for 800 • The general term that refers to the size of a cation or an anion. 200 Ammonia (NH3) can be produced by the reaction of hydrogen and nitrogen shown in the equation below. 3H2+ N2 2NH3 If 84.1 grams of N2react completely with H2, how many grams of ammonia are produced?

  37. Final Challenge End Game • Across the entire Periodic Table, this is the direction in which electronegativity increases. Write Your Final Challenge Wager After playing this review game, what score do I expect to get on my benchmark? Bonus Question: Is Mr. Astor: The best teacher ever B. The greatest teacher alive C. Really good at chemistry D. Really good at everything TIME’S UP!

  38. Game Over STUDY FOR YOUR TEST. “Failing to prepare is preparing to fail.”

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