complete combustion of a 0.150-g sample of this compound produces 0.225 g of CO2 and 0.0614 g of H2O‚ what is the empirical formula of this compound? (a) C3H4 (b) CH4O (c) C3HO3 (d) C3H4O3 (e) C5H7O5 b 9. A compound contains‚ by mass‚ 87.5% nitrogen and 12.5% hydrogen. Its molecular weight is found to be 32 g/mol. What is its molecular formula? (a) N2H6 (b) N2H4 (c) N2H5 (d) NH3 (e) NH2 e 10. Balance the following equation with the smallest whole number coefficients. What is the coefficient
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Trophic Categories: 1. Producers 2. Consumers 3. Detritus feeders and decomposers Producers = organisms that capture energy from the sun or from chemical reactions to convert carbon dioxide to organic matter Organic Matter vs. Inorganic Matter -Matter that makes up the bodies of living things generally characterized by the presence of carbon and hydrogen bonds. Most producers are green plants. 1. Autotroph i. Chemosynthetic bacteria ii. Green plants iii. Algae 2. Heterotroph
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Intercropping: Should Large Scale Farms be Interested? As an Agriculture and Environmental Plant Science (AEPS) major at Cal Poly San Luis Obispo‚ I have briefly learned about an agricultural technique called intercropping in several of my classes. I have never learned about it in detail‚ but these classes sparked my interest to investigate the topic further. I am specifically interested in better understanding the pros and cons and if intercropping is a viable option for large-scale farms. My
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Global Industrial Gas Market 2014-2018 Industrial gases such as acetylene‚ oxygen‚ carbon dioxide‚ nitrogen‚ krypton‚ helium‚ and specialty gases are used extensively in process industries such as Oil and Gas‚ Chemicals‚ Power‚ Mining‚ Metals‚ Pharmaceuticals‚ Food‚ Electronics‚ and Aerospace. These gases have chemical properties such as reactivity‚ inertness‚ and coldness‚ because of which they are used extensively. Industrial gases are used by manufacturers to increase their efficiency. The
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germs and viruses. People living next to a building site where there is too much noise can become sick as they cannot sleep or relax. This is called noise pollution.Air pollution is caused by harmful gases such as carbon dioxide‚ sulphur dioxide and nitrogen dioxide and very small particles of carbon. Most of the
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Calculations involving quantities of consumed reactants and formed products based on a BALANCED chemical equation. Mass Molar Mass Mole Coeff Bal Eqn Mole Molar Mass Mass Example 2 • The Haber Process involves reacting gaseous nitrogen and gaseous hydrogen to form ammonia. Determine the mass in grams of hydrogen gas required to form 1.00 x 103 g ammonia. Your Turn 2 • If you react 52.9 g of potassium chlorate (KClO3) with excess phosphorus‚ what mass of tetraphosphorus
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continuing to invest in the renovation and modernization of its existing facilities. Public Relations Department URALCHEM‚ OJSC Tel: +7 (495) 721 89 89 pr@uralchem.com http://www.uralchem.com URALCHEM‚ OJSC is one of the largest producers of nitrogen and phosphate fertilizers in
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percent of pure‚ dry air is nitrogen (about 78 percent by volume) and oxygen (about 21 percent). These two main component gases of the lower atmosphere are perfectly mixed‚ so pure‚ dry air behaves as if it is a single gas with very definite physical properties. Nitrogen gas is a molecule consisting of two nitrogen atoms (N2). It does not easily react with other substances. Soil bacteria do take up very small amounts of nitrogen‚ which can be used by plants‚ but otherwise nitrogen is largely “filler‚” adding
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despite some deteriorating soil conditions. There are three main elements in each bag of fertilizer. They are nitrogen‚ phosphorus and potassium and are represented on the outside of the bag in that order. Each of the three elements has a different benefit to the growth of a plant. Plants use nitrogen to digest proteins‚ nucleic acids and hormones. When a plant is lacking in nitrogen‚ it may have stunted growth and yellowing leaves. Phosphorus is also very important to plant growth. It assists
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then it will contain too much acid‚ but you don’t want the water to be too basic either. pH of 7.0 is the best for water. Nitrogen is an element similar to oxygen due to the fact that it it fuels many processes within organisms. If too much nitrogen enters an aquatic ecosystem‚ eutrophication can result‚ which can kill the entire aquatic ecosystem. Generally the range for nitrogen is 1-5‚ but theoretically 1-∞‚ with a value of 1 being great‚ and 5 being terrible (measured in mg/L). Phosphorus is a common
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