our own backyard‚ our own streets‚ our own oceans‚ and our own world. First‚ we created our own wastewater by mixing dried up coffee grounds‚ ground-up cereal and pet food‚ cut up plastic bags‚ baking soda‚ torn up toilet paper‚ vegetable oil‚ and ammonia into water. The end result looked like actual wastewater. We proceeded to do the primary‚ secondary‚ and advanced treatment steps to treat the wastewater.
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Solvay process Raw materials - NaCl‚ salt - CaCO3‚ limestone - H2O‚ water - NH3‚ ammonia is recycled Useful products - sodium carbonate. Na2CO3 – reason for process Waste products - CaCl2‚ calcium chloride - Heat Chemical properties of the main product (Na2CO3) - Forms several hydrates which are used in many ways - It is moderately alkaline‚ so it can neutralise strong acids - Can precipitate many metal ions from solution as carbonates Uses of sodium carbonate - Glass
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a central role in almost all aspects of nitrogen availability and thus for life support on earth: some bacteria can convert N2 into ammonia by the process termed nitrogen fixation; these bacteria are either free-living or form symbiotic associations with plants or other organisms (e.g. termites‚ protozoa) other bacteria bring about transformations of ammonia to nitrate‚ and of nitrate to N2 or other nitrogen gases many bacteria and fungi degrade organic matter‚ releasing fixed nitrogen
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2.6.6. Levels of total ammonia nitrogen‚ nitrite‚ nitrate and phosphate in the water samples The mean TAN levels in the present study in all the sampling stations were below the recommended level of 0.1 to 1.0 mg/L prescribed by Boyd (1990). However‚ when the level recommended (< 0.2 mg/L) by Chavez (2009) is taken as a standard‚ it was found to that 35% of the study period‚ TAN levels were above the acceptable limit in the feeder canal and the pond 3. Ferreira et al. (2011) has recommended 0
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an acid formed from reaction of ammonia and oxygen. Nitric acid is a colourless acid when it’s pure‚ or can be found yellow or red. This acid can be very corrosive to eyes and skin and can cause severe burns to human skin and tissues. It is miscible to water‚ and has a very pungent smell. Nitric acid is very reactive and can is able to melt many metals‚ and non metals. As a solution‚ nitric acid is known as a good conductor of electricity. When combining ammonia and oxygen‚ water and nitrogen‚
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The articles “Energy Shots” by Energyquest.com‚ “Short Circuit” by Explorium.edu‚ and lastly “Conducting Solutions” by Rodney Schreiner all are pieces of writing that present explanations‚ examples‚ and descriptions as to why and how energy is conducted and also a scientific experiment that will show how to conduct energy. First of all‚ “Energy Shots” by energyquest.com explains‚ describes‚ and provideds examples that connect with everybodys daily lifes like what houshold ampliances use and conduct
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surroundings. It also releases gases. An exothermic reaction is a reaction that releases energy as heat. Since the energy is released‚ the exothermic reactions feel hot. Methods/Materials I did three experiments. I mixed lemon juice and baking soda‚ammonia and vinegar‚ and finally‚ hydrochloric acid and sodium hydroxide. I did each experiment when the acid was 0‚ 20‚ 40‚ 60‚ and 80;all in degrees Celsius. Therefore‚ I could compare the exothermic reaction with the endothermic reaction at each temperature
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to inform how you construct the three-dimensional models. Materials: Google Microsoft Word Paint (the computer tool) Procedure: 1. Identify the chemical and structural formulas and electron dot structures of the following molecules: water‚ ammonia‚ carbon dioxide‚ fluorine‚ methane‚ ethane 2. Write the formulas and draw the two-dimensional structures in the table. 3. Chose one color candy to represent each atom of an element (e.g.‚ red jelly bean = hydrogen). Create a key that identifies
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this experiment? B. Graham’s Law of Diffusion Distance Travelled by Ammonia in cm (dNH3) | | Distance Travelled by Hydrogen Chloride in cm (dHCl) | | Molar Mass of Hydrogen Chloride in g/mole (MHCl) | | Experimental Molar Mass of Ammonia in g/mole (MNH3) | | True Molar Mass of Ammonia in g/mole (MNH3) | | Percent Error | | Show the computations for the following: 1. Experimental Molar Mass of Ammonia 2. Percent Error Why should the glass tubing be dry? What are
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constant (L) and is equal to 6.02 x 1023. 1 mole of carbon-12 contains 6.02 x 1023 atoms. Therefore‚ 1 mole of any substance contains 6.02 x 1023 atoms/molecules/ions. For example‚ 1 mole of aluminium contains 6.02 x 1023 Al atoms 1 mole of ammonia contains 6.02 x 1023 NH3 molecules 1 mole of iron ions contains 6.02 x 1023 Fe ions Atoms Calculate the number of atoms in 2 moles of silicon. Number of Atoms = moles x atoms in 1 mole = 2 x 6.02 x 1023 = 1.20 x 1024 atoms
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