Formula of Silver Oxide Purpose: To find the percent composition and empirical formula of silver oxide can then be calculated‚ based on combining the ratios of silver and oxygen in the reaction. Hypothesis: Silver oxide decomposes to silver metal and oxygen when strongly heated. Heating Silver oxide causes the oxygen to be driven off‚ leaving only the silver metal behind. The total mass of the products of a chemical reaction must equal the mass of the reactants. Mass of silver oxide = Mass of silver
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The purpose of this lab was to find the empirical formula for magnesium oxide. To find this formula‚ a strip of Magnesium ribbon was burned in a crucible over a flame from a bunson burner. After the strip caught fire multiple times with the cover on‚ and 10 drops of distilled water were added‚ and the crucible was lightly heated. The crucible was then weighed and the mass recorded. Calculations were performed and the mole ratio of Mg to O was recorded. The results of other lab groups performing
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King Henry IV was born April 4‚ 1366 at Bolingbroke Castle‚ Lincolnshire. In 1398 Henry IV was banished by Richard II‚ however a year later he returned eager and leading a revolt to depose Richard II. Henry IV’s revolt was a success‚ and he then became the King of England and the 1st monarch of the Lancastrian dynasty. In January of 1400‚ when Richard II was still alive‚ Henry quashed a conspiracy of the deposed king’s supporters. Unfortunately‚ while Richard II was imprisoned he starved to death
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leap / To pluck bright honour from the pale-faced moon” (Shakespeare‚ Henry IV‚ Part One 1.3.201-2). Falstaff: “What is honour? A word. What is in that word honour? What is that honour? Air” (Shakespeare‚ Henry IV‚ Part One 5.1.133-4). Discuss. In the late 1590s‚ English playwright William Shakespeare wrote Henry IV Part One‚ the second historical drama of his second tetralogy. Henry IV Part One tells the story of the reformation of Prince Harry of Wales‚ the
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The glow sticks can operate by causing two chemicals to mix. A common reaction used for these devices is hydrogen peroxide and phenol oxalate ester. The hydrogen peroxide is kept in a thin‚ small glass vial in the middle of the stick‚ and the second chemical phenol oxalate ester is in the main body of the light stick. Bending the light stick in the middle causes the small glass vial of hydrogen
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Making and Testing for Hydrogen Gas Felicity Tyler Aim: To produce and test for hydrogen gas. Materials: * rubber stopper * dilute hydrochloric acid (HCI) * zinc pieces (Zn) * test-tube rack * matches * dilute sulphuric acid (H2SO4) * 2 cm strips of magnesium ribbon (Mg) * Iron pieces (Fe) * Test-tube Method 1. Test the different metals with the acids by separately combining
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Hydrogen Selenide is toxic. It is made up of selenium which is also toxic‚ and hydrogen which is nontoxic. This substance is also colorless like hydrogen‚ but not like selenium which is a deep red color. There are reports of mine workers being poisoned by hydrogen selenide and selenium. Increasing industrial applications of selenium and the fact that workers may be exposed to Hydrogen Selenide have led authors to make a further investigation of the toxicity of this substance. The purpose of this
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Lab 3: Hydrogen Spectrum Abstract When white light is viewed through a diffraction grating‚ we can see each component that makes up the light. However‚ when in an excited state‚ a gaseous element produces bright light of specific wavelengths rather than a continuous spectrum of colors. This phenomenon ultimately lead to the Neils Bohr model of the atom in 1913. Introduction In the middle of the 19th century‚ Robert Bunsen and Gustav Kichoff observed that gases emit spectral lines specific
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the days. The article named. “The History of Intravenous therapy” written by Doris‚ who is an RN‚ MS‚ is written about the use of IV therapy throughout the history. This paper will predominantly summarizing about the article and briefly explaining my view about the article. In the beginning of the article‚ the author said‚ “The history of intravenous therapy. Modern IV therapy is less than a century old. Yet‚ it was known that medications could be injected into a vein as early as the 1600s. Because
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Chemist from the University of Glasgow in Scotland have taken a step closer towards producing clean hydrogen fuel in a maintainable way. Hydrogen gas is able to be burned to generate electricity without producing lethal releases‚ unlike fossil fuels. It is produced from water releasing them as gas‚ through a process called electrolysis‚ which uses electricity to break the bonds between hydrogen and oxygen. This technique is 30 times faster than the current method‚ and can be powered by renewable
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