Inorganic chemistry

Question: Does the amount of surface area affect how fast it takes for a rock” to be weathered? Hypothesis: If we use 3 types of “rocks”, we think that the one that the smallest will be weathered away the fastest because it is the smallest in size than than the other “rocks”. Materials: 2 Beakers 3 Alka-Seltzer Tablets Room Temperature Water Timing Device Sheet of Paper Pencil Controlled Variables Amount of Water Temperature of Water Volume of “Rock” (Alka-Seltzer) Type of “Rock” (Alka-Seltzer)

The objective of Day 1 of this lab was to create a liquid fertilizer with 10% phosphorous by mass, 80% nitrogen by mass, and 50% potassium by mass using soluble compounds containing those elements. Additionally, a goal of Day 1 was to attempt to keep the pH of the final fertilizer within 6 and 7, although if the pH was outside this range it was not necessary to adjust the pH of the fertilizer to fit within this range. The objective of Day 2 of this lab was to remake the fertilizer from Day 1 with

An unknown salt sample was placed at the lab station and the sample number was recorded. Two uncontaminated and dry crucibles were previously taken out of a 110oC oven 20 minutes prior to the lab section by the TA, to cool. An analytical balance was used to accurately measure the mass different of a 0.1000g to 0.1500g sample of the unknown salt. The masses of the unknown salt sample number #338 was both weighed by the difference into a 200ml beaker. The mass of the sample salt obtained by the author

Chromium is part of the periodic table this element has the atomic number of 24 which means that it has 24 protons and 24 electrons. Its atomic mass is 51.996, but when reduced it will be 52. The density of the element is 7.19, and the temperature for it is 20 Celsius. And the melting point of the element is going to be 1907 Celsius. This information gives you the idea of what my element has. The history of the element is very interesting, because it came from a Greek word. But it was discovered

The goal of this experiment was to synthesize an alkene (4-methylcyclohexene) from an alcohol (4-methylcyclohexanol) by dehydration. The reaction, consist of 4-methylcyclohexanol, phosphoric acid, and sulfuric acid, was refluxed at a given time frame. The product was isolated by distillation and purified by adding sodium chloride to help the extraction. The final product had a 125% yield and was characterized by the IR spectroscopy and chemical reaction. The alkene resulted in a colorless liquid

Procedure [C, 8] Part A: Iron (III) Nitrate and Sodium Hydroxide 1. Sliding the mini test tube into the empty Erlenmeyer flask and sealing it with the rubber stopper were practiced a few times before conducting the experiment. 2. 5 ml of Sodium Hydroxide solution was measured using the graduated cylinder. After, it was poured into the empty Erlenmeyer Flask. 3. 3 ml of Iron(III) Nitrate was poured into the mini test tube. Next, the Erlenmeyer Flask was tilted and the mini test tube

Bolster tests were gathered day by day amid the accumulation time frame, dried at 60°C for 48 h, ground to pass a 1 mm screen (standard model 4; Arthur H. Thomas Co., Swedesboro, NJ) and put away for sub-sequent investigations. Every day bits of ground tests were composited for every creature and dissected for DM, rough protein (CP), corrosive cleanser lignin, ether concentrate and unrefined cinder as indicated by the strategies portrayed by AOAC (1998). Nitrogen substance of the eating routine specimens

1. Day 1, take 1/4 drop of MMS in water, every hour, 8 times a day. Read on below for detailed steps. 1.1. To measure 1/4 drop, add 1 drop of Sodium Chlorite and 1 drop of 50% Citric Acid (or 4% Hydrochloric Acid) in a clean and dry glass, and wait about 30 seconds while you stir the mixture. 1.2. After about 30 seconds, the mixture will turn pale yellow or amber in color at which point add water to it. 1.3. Drain about 3/4 of water from the glass and what remains is 1/4 drop of MMS. 2. Day 2 and

The Ancient Egyptians used thymol and carvacrol as protective drug agents to protect preserve of the mummies(15). Thymol are known to destroyed microorganisms due to presence of these compounds(16). In Ancient Greece thymolthyme was employed as improving flavor additive(17). ThymolThyme is also used as antiseptic agent in mouth washes, and sore throats (17). North American wild flowers are natural sources of thymol and it is key ingredient of thyme(18, 19). The Native Americans have recognizedknown

Hans Kreb received the Nobel Prize for discovering the metabolic cycle in 1953. He worked under the guidance of Otto Warburg at the University of Freiburg where he was introduced to techniques which helped to study the rate of cellular respiration using ‘tissue slice method’ and Warburg manometer. These techniques were instrumental in understanding respiration at cellular level rather than whole organism level. In the year 1930 when Kreb began studying cellular respiration some hypothesis regarding