bottles 4. 50g Hydrilla 5. 50g Cabomba 6. Hydrogen carbonate 7. Distilled Water 8. Tap Water 9. 4 lamps 10. Lab Quest 11. Timer Method Preparing Hydrogen Carbonate solution (10% concentration) 1) Pour 100ml of distilled water into a beaker 2) Add 10g of NaHCO3 and stir until dissolved Preparing plant species 1) Using a measuring balance‚ measure 30g of hydrilla and set aside 2) Repeat step 1 with cabomba Set-up 1) Place 4 large beakers in a row‚ and fill each with 70 ml tap water 2) Insert a gas sampling
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I. Grade Level/Unit Number: 9-12 Unit 7 II: Unit Title: Mole Concept III. Unit Length: 7 days (on a 90 min. per day block schedule) IV. Major Learning Outcomes: Students should be able to: Mole Concept • Calculate formula mass. • Convert representative particles to moles and moles to representative particles. (Representative particles are atoms‚ molecules‚ formula units‚ and ions.) • Convert mass of atoms‚ molecules‚ and compounds to moles and moles of atoms
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Sodium hydrogen carbonate (baking soda) reacts with ethanoic acid found in vinegar in a 1:1 ratio in the following reaction: baking soda (sodium bicarbonate) + vinegar (acetic acid) --> carbon dioxide + water + sodium ion + acetate ion HC2H3O2 (aq) + NaHCO3 (s) → H2O (l) + CO2 (g) + NaC2H3O2 (aq)
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reaction. The objective of this experiment is to be able to prepare the assigned ester by using the Fischer Reaction and to calculate the percent yield. Methodology Materials: Isoamyl Alcohol Acetic Anhydride Concentrated H2SO4 Saturated NaHCO3 NaCl solution Reflux Setup: The reflux setup contains a condensing system at a 90-degree angle with the flasks that prevents the solvent from evaporating but at the same time maintaining the temperature of the solvent. The 90-degree angle
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Baking Soda Baking Soda‚ also known as sodium bicarbonate or sodium hydrogen bicarbonate is an alkali which is a white crystalline however it often appears as a fine powder‚ its chemical name is NaHCO3. It is used to increase the volume of baked goods. It has a slightly salty‚ alkaline taste resembling that of washing soda (sodium carbonate). (1) Baking Powder Baking Powder is also a dry leavening agent which is a mixture
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SAFETY General WHMIS beforehand – no messing around on anything‚ no food/drink anywhere PPE – goggles‚ coat‚ feet Treatment Skin Chem: emergency shower – TA/HS Eye Chem: eye wash – 10 mins. TA/HS Fire Emergency kill switch for gas‚ electricity and water – leave and set the alarm Stop drop and roll Apparati should be clear of any controls or switches‚ keep vapours to minimum/take need Extinguishers – on the wall inside each 1st year lab Class A - ordinary combustibles
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1. An organic compound X with a molecular formula C2H6O undergoes oxidation with in presence of alkaline KMnO4 to form a compound Y. X on heating in presence of Conc. H2SO4 at 443K gives Z. Which on reaction with H2Oin presence of H2SO4 gives back `X` `Z` reacts with Br2 (aq) and decolorizes it. Identify X‚ Y‚ & Z and write the reactions involved. 2. An organic compound ‘A’ is widely used as a preservative in pickles and has a molecular formula C2H2O2. This compound reacts with ethanol to
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a reaction. Reactions that occur Mixing lemon juice with baking soda gives you a chemical reaction. The lemon juice contains citric acid. The citric acid from the lemon juice will donate a hydrogen ion (H+) to the bicarbonate or baking soda (NaHCO3). When the bicarbonate is mixed into solution‚ the bicarbonate acts as a base and takes the H+ ion from the citric acid to form carbonic acid (H2CO3) and carbon dioxide (CO2). Whenever a chemical reaction produces gas‚ it will be highly favored
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http://foricseandbeyond.blogspot.in/ DE’S FOUNDATION BISTUPUR‚ JSR ACTION OF HEAT ON CHEMICAL COMPOUNDS “Analytical chemistry -I” http://foricseandbeyond.blogspot.in/ metal oxide “Oxides of metals are generally stable to heat and they are considered to be most stable form of compound found in nature.” Oxides of potassium‚sodium‚calcium‚magnesium‚ aluminum ‚ zinc‚iron‚lead and copper are stable to heat uO C PbO Zn O http://foricseandbeyond.blogspot.in/ MERCURIC OXIDE
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The correlation between the occurrence of photosynthesis and different lengths of light waves. Introduction Photosynthesis is an exceptionally interesting process that is used by some organisms and plants. In the conversion of light energy from the sun to chemical energy that is used as food‚ photosynthesis is used for the everyday undertakings by some organisms and plants during their life span. This complex method of energy production is also represented by the equation: 6CO2 + 6H2O C6H12O6
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