SCIENCE REPORT AMMONIUM NITRATE NH4NO3 Problem Our task was to investigate what the optimum ratio of solute to solvent that will produce the maximum cooling/heating effect? Hypothesis With a smaller quantity of water (50mls) and the same amount of Ammonium Nitrate added. After any period of time the mixture will be a cooler temperature than that of a mixture with a larger quantity of water. Variables „X Water „X Teaspoons „X Time „X Ammonium Nitrate „X Thermometer „X Stirring
The Solubility of Potassium Nitrate Aim To investigate how the solubility of Potassium Nitrate is affected by Temperature. Background Knowledge Potassium Nitrate (KNO3) is an ionic compound. The strong ionic bonds hold the compound in an ionic lattice which gives KNO3 its crystalline structure. These ionic bonds also have other properties which will affect my investigation, I must be aware of these properties for greater accuracy in my method. The ionic bonds give KNO3 high melting
depending on freshwater habitats to be safe homes. One of the main contaminants, nitrates, which spring from mainly manmade sources, are especially treacherous… Many people are unaware of the impact of nitrate ions in freshwater habitats. Nitrate presence is imperative for plant growth and development. This is because nitrogen is a key ingredient in the nucleic acid structure of plants. The natural level of nitrate concentration in freshwater is 1 milligram/Liter (mg/L). However, due to agricultural
Potassium Nitrate Stability --------- Stable. Strong oxidizer - contact with combustible material may cause fire. Incompatible with combustible materials, and strong reducing agents. Toxicology ---------- Harmful if swallowed. May cause reproductive disorders. ------------------------------------------------------- Hazard: oxidizing ----------------- Aim The aim of this experiment is to determine the crystallisation temperature of the solution potassium nitrate at different
Because of this plants are forced to obtain nitrogen in the form of nitrate and ammonium from the soil. Too much nitrate can cause a negative effect on the plant including nitrate toxicity. High levels of nitrate are not only bad for plants but can also be dangerous to animals or humans in their presence. Here I discuss the scientific evidence of the effects of nitrate accumulation on plants and the environment and argue that too much nitrate accumulation can be harmful to its surroundings. Nitrogen is
precipitation. In this lab, solutions of lead nitrate and potassium iodide will be mixed at a number of dilutions. The reactions will then be observed to see at which point a precipitate no longer occurs. Ksp will then be stated as a range of values at room temperature, and the precipitate test tubes will be heated until the precipitate is dissolved so that Ksp may be observed and determined at different levels. In this experiment various solutions of lead nitrate and potassium iodide were mixed at a number
pure ammonia. It is kept in liquid form under pressure in steel tanks. Three solid nitrogen fertilizers are ammonium sulfate, ammonium nitrate, and ammonium phosphate. Two common phosphorus fertilizers are superphosphate and triple superphosphate. Phosphorous fertilizer is made by treating phosphate rock with sulfuric acid. Potassium sulfate and potassium nitrate are used on crops that are harmed by chlorides. The term straight fertilizer stands for any material that supplies one of the three principal
Collect materials and put on goggles for eye protection. 2. Prepare a test cell to measure the voltage of the copper and zinc half-cells. 3. Put approximately 2 mL 1.0 M zinc nitrate solution in one of the center wells of a 24-well plate. 4. Put approximately 2 mL of 1.0 M copper (II) nitrate in an adjacent well. Polish small strips of zinc and copper metal, and place the metal in the appropriate well containing the solution of the ions of that metal. 5. Take a small strip
Approximately 1 million new cases of this disease are reported each year in the United States, and public health experts estimate that an additional million or more gonorrhea infections go unreported each year. Although these numbers seem very large, the disease occurs less frequently now than it did in the early 1980s. The rate of infection among young unmarried people between the ages of 15 and 24, however it remains very high. Study results released in 1988 by the National Academy
“Plant Food” they are selling solutions of some of the important minerals; these can be added to the soil in which the plants are growing. When plants are unable to absorb enough an important mineral they show signs of deficiency. If to little nitrate, phosphate, potassium, iron, magnesium, sulphate or calcium is absorbed by the plant, its appearance and growth will be affected. For instance, potassium helps photosynthesis and magnesium is needed for the plant to manufacture chlorophyll.
flowing through the circuit and the Time the it stays in side the beaker. Dependent Variable: Mass of the electrode Control: Amount of electrolyte Apparatus: · Crocodile clips · Power pack · 2 strips of copper · 10ml silver nitrate · resistor · ammeter · small beaker · stop watch Method: First connect the power pack by plugging it in to the electric socket. Then connect the crocodile clips to the power pack and from there connect one piece the crocodile clip
regarded as a pioneer in organic chemistry as a result of his synthesizing of the biological compound urea (a component of urine in many animals) utilizing what is now called "the Wöhler synthesis." Wöhler mixed silver or lead cyanate with ammonium nitrate; this was supposed to yield ammonium cyanate as a result of an exchange reaction, according to Berzelius's dualism theory. Wöhler, however, discovered that the end product of this reaction is not ammonium cyanate (NH4OCN), an inorganic salt, but urea
(Singer and Munns). Nitrogen is useful to plants in the form of nitrate because plants can take in nitrate and form organic molecules (Singer and Munns, 193). However, in soils, nitrogen in the form of nitrate (NO3) is considered a "mobile nutrient" which means that it can move easily through the soil to supply the needs of a plant (Singer and Munns, 221). That means it is accessible to the roots of plants, however, it also means that nitrate can be transported through a soil by moving with the water
which the enzyme works by measuring the amount of oxygen evolved over a period of time. The experiment was carried out varying the temperature and recording the results. It was then repeated but we removed the catalase (potato) and added Lead Nitrate in its place, we again tested this experiment at two different temperatures and recorded the results. Once all the experiments were calculated, comparisons against two other groups were recorded. With this information we were able to identify
sample of Barium Sulphate (BaSO4) of at least 0.50 grams. 4. Apparatus & Materials Chemicals used: Barium Nitrate, Ba(NO3)2 Sulphuric Acid, H2SO4 Lab equipment used: Glass beakers (2) Funnel (1) Filter paper (5) Conical flask (1) 5. Method 1. Collect 50 cm3 of Sulphuric Acid and 50 cm3 of Barium Nitrate in separate beakers. 2. Add the Barium Nitrate to the Sulphuric Acid [Time taken for steps 1 and 2: 1 minute] 3. Stir the resultant mixture to ensure that the
Qualitative Analysis Purpose: In this lab, we would tests the ions of Mg2+, Ca2+, Sr2+, and Ba2+, and enable each to be identified separately. And by using these observations, we could also identify an unknown. We also would tests the ions of SO42-, CO32-, Cl-, and I-, that also enable each to be identified separately, and to be use to identify the unknown. Safety: Chemicals include toxic. Remember to wash hands after the experiment. Procedure Summary; Part I - Qualitative Analysis
up the basic fireworks: Oxidizers The first thing in a firework is the oxidizing agent. These produce the Oxygen to burn the mixture. Oxidizers are usually nitrates, chlorates or perchlorates. The common oxidizers are nitrates. These are made up of a metal ion and the nitrate ion. I'll use potassium nitrate as an example. Nitrates only give up 1/3 of their oxygen. The resulting equation would look something like this: 2KNO3 ---> 2KNO2 + O2 The next Oxidizers are chlorates are also made
Nowadays, ammonium nitrate is gaining great attraction in the field of propellant as a great oxidizer. Ammonium nitrate is an inorganic compound used as fertilizer, oxidizer and also for other applications. AN combined with fuel can be used in gas generators . The ammonium nitrate extracted from demilitarized rocket motors can be used as an oxidizing agent in the hydrothermal oxidation of organic wastes . It has seven phase transitions3. Phase transition of ammonium nitrate The IUPAC defined polymorphic
machinery. Over the next few days, bags of ammonium nitrate fertilizer, shipped from Nebraska via rail by TCT (Texas City Terminal Railway company) were being loaded onto the ship. By the morning of April 16, 1947, No. 2 hold had 1420 tons of ammonium nitrate while No. 4 had 880 tons. At 8 am that morning, a longshoreman smelled smoke coming out of hold No. 4. He alertly notified his co-workers and they moved several bags of ammonium nitrate fertilizer and found flames between the cargo and the
Sodium Nitrates and Nitrites, are two of the most common food additives in America. Nitrites are compounds consisting of one nitrogen atom and two oxygen atoms, while nitrates contain one nitrogen atom, and 3 oxygen atoms. These additives are most commonly used in processed meat products in order to increase shelf life and give these processed meats their distinctive red color and flavor. (UK Food Guide) Nitrates, and Nitrites are in meats such as ham, bacon, corned beef, etc. These additives stop