3. What element do you think is the most abundant in the star that you observed in Part Two? Explain your answer. Part1: Solution Name Color Description Known 1 Barium Green Known 2 Calcium Red Known 3 Sodium Yellow Known 4 Rubidium Purple Known 5 Potassium Blue Known 6 Lithium Pink Unknown Sodium Yellow Unknown Potassium Blue The first unknown is sodium because it has a yellow flame. The second unknown is potassium because it has a blue flame.
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Nova: “Absolute Zero” Name: Jordan Mills Per: 7 PART 1 – THE CONQUEST OF COLD 1. Cornelius Drebbel had a wager with King James I in 1620. What was it? Said that he could turn summer into winter 2. What does adding salt do to ice? Lowers the temperature 3. What is Robert Boyle primarily famous for? He’s famous for his experiments on air and for his curiosity concerning the cold. 4. When were the first accurately calibrated thermometers made
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include the name of the element (or unknown) examined and the color of the observed flame Known Elements Color Barium Green Calcium Red Sodium Yellow Rubidium Violet/Blue Potassium Blue Lithium Magenta Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. Unknown substance One is
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complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame Element | Color of Flame | Barium | Lime neon green | Calcium | Red | Sodium | Yellow | Rubidium | Purple | Potassium | Blue | Lithium | Dark Pink | | | 2. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. Unknown 1 was Sodium and Unknown 2 was Potassium. I compared
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When Gustav Robert Kirchhoff’s banker questioned the financial unreliability that would result from Mr. Kirchhoff investing his hard-earned gold in Fraunhofer lines‚ Kirchhoff handed him the medal he had earned from his research and replied “Look here‚ I have succeeded at last in fetching some gold from the sun.” Despite how phenomenally sassy this quote makes him appear‚ Kirchhoff lived a quiet life (aside from his incredible scientific contributions‚ of course). Gustav Robert Kirchhoff was born
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completed lab report to your instructor. Don’t forget to save your lab report to your computer! Reference: Isotope Half-Life Chart Isotope Product Half Life Carbon-14 Nitrogen-14 5730 years Potassium - 40 Argon - 40 1‚280 million years Rubidium - 87 Strontium -8 7 48‚800 million years Thorium - 232 Lead – 208 14‚010 million years Uranium - 235 Lead - 297 704 million years Uranium - 238 Lead - 206 4‚470 million years Activity 1 – Calibration Place your data from Activity
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your instructor. Don’t forget to save your lab report to your computer! Reference: Isotope Half-Life Chart Isotope | Product | Half Life | Carbon-14 | Nitrogen-14 | 5730 years | Potassium - 40 | Argon - 40 | 1‚280 million years | Rubidium - 87 | Strontium -8 7 | 48‚800 million years | Thorium - 232 | Lead – 208 | 14‚010 million years | Uranium - 235 | Lead - 297 | 704 million years | Uranium - 238 | Lead - 206 | 4‚470 million years | Activity 1 – Calibration Place your
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the lab. It should include the name of the element (or unknown) examined and the color of the observed flame SOLUTION | NAME | COLOR | KNOWN 1 | BARIUM | GREEN | KNOWN 2 | CALCIUM | RED | KNOWN 3 | SODIUM | ORANGE | KNOWN 4 | RUBIDIUM | PURPLE | KNOWN 5 | POTASSIUM | BLUE | KNOWN 6 | LITHIUM | VIOLET | UNKNOWN 1 | SODIUM | ORANGE | UNKNOWN 2 | POTASSIUM | BLUE | 1. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown
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Experimental Chemistry In this topic‚ you will learn: www.revision-notes.co.cc Hazard Warning Labels www.revision-notes.co.cc Measurement: Mass‚ Volume‚ Time and Temperature www.revision-notes.co.cc www.revision-notes.co.cc Collection of Gases www.revision-notes.co.cc Identification of Gases www.revision-notes.co.cc The Particulate Nature of Matter In this topic‚ you will learn: www.revision-notes.co.cc States of Matter Kinetic Theory www.revision-notes
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EXPERIMENT 4B: THE MENDELEEV LAB OF 1869 Materials: 30 element cards‚ periodic table Aim: How can we identify elements based on their propeties? Background: Russian chemist Dmitri Mendeleev is generally credited as being the first chemist to observe patterns emerge when the elements are arranged according to their properties. Mendeleev’s arrangement of the elements was unique because he left blank spaces for elements that he claimed were undiscovered as of 1869. Mendeleev was so confident
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