Bomb Calorimeter Lab Report

During this investigation, I strived to figure out if an endothermic or exothermic reaction occurs in a cold pack. This goal was formed based on the guiding question: What type of chemical reaction occurs in a cold pack? To conduct this investigation, I began by creating a list of procedures to follow in order to stay on track and work efficiently. Firstly, I had to collect the materials I needed and work out the correct amounts of each substance to use in order for the reaction to work correctly.

An unidentified compound was found in a landfill and the group was ordered to investigate and identify the unknown substance. Figuring out the physical and chemical properties was needed in order to make predications on how the compound might behave. Syntheses of the compound were devised to figure out cost effectiveness, safety, and potential yield of the newly identified compound. Final results established that the unknown compound was NaCl. (1)

Purpose: The purpose of this lab is to prepare various ratios of ethyne (C2H2) to air solutions and observe the combustion reaction when said solution is lit. The reaction between a dilute (0.1 mole per litre) aqueous solution of potassium permanganate (KMnO4), calcium carbide (CaC2) and ethyne is also to be investigated. Procedure: All the instruments and materials used in the lab were inspected for faults and potential dangers.

Introduction The goal of this experiment was to acquire an understanding of the fundamentals of measurement in addition to analyzing the gathered data. During the experiment, an understanding of basic experimental error was gained as well as how to utilize the error equations to account for margins of error in each experiment. For Investigation 1, the mass, length and diameter of four separate cylinders was measured and utilized to calculate the volume and density of the cylinders. After recording these results in the table, the data of the cylinders was graphed. Then, in Investigation 2, a Geiger counter was utilized to measure background radiation in the lab at intervals of one minute for sixty minutes.

The freezing point for tert-butanol in literature is 78 F, or approximately 25 C, which is quite close to what was observed, as stated in the Freezing Points Table. (NOAA, 2016). The molarity of the additive substance could be calculated by taking the moles used and diving by the volume of the solvent. So for benzoic acid, there would be two different values.

The purpose of this experiment is to see which specific types of flammable liquid burns longer when contacted with

Data Analysis It was evident throughout the experiment that in the compound the metal determined the color of the flame. The color depended only on the metal component of the compound. The non-metal element that was in the compound did not mater. Compounds with Lithium (Li) were always red, compounds with Sodium (Na) were always yellow, compounds with Calcium (Ca) were always orange, Compounds with potassium (K) were always lilac, and compounds with Copper (Cu) were green.

Introduction: The moment the salt makes contact with water, it seems to disappear. Although it may seem like magic, the salt is just dissolving. This is due to the bonds between the molecules being broken down. The most well known type of salt, NaCl, is just a combination of sodium and chlorine ions, which have a relatively weak bond strength.

The observed emission data for the different elements did not look how they were supposed to. However the “peaks” for Hydrogen were found to be 534.52 and 631.24, 534.70 and 569.11 for Helium and 529.73 and 630.71 for Mercury. The Rydberg’s Constant found to 1.1x107 8.5x104 while the known constant is 10967758.34m-1. The percent error of 0.29% and the accuracy of this reading is 99.7. The slope and intercept of the linear regression line is -0.01 3.3x10-5 and 0.02x10-1 1.9x10-6 respectfully.

The areas that are needed for storing can be particular large and may lead to deforestation. 3.2.2 Emissions The principal concerns about emissions and the impact of combustion systems on air quality are in relation to carbon dioxide and carbon monoxide (〖CO〗_2 and CO), small particulates (PM10 and PM2.5; particles smaller than 10 microns and 2.5 microns respectively), oxides of nitrogen (NOx) and sulfur dioxide (〖SO〗_2). 〖CO〗_2 is a greenhouse gas and an inevitable consequence of burning any organic (carbon containing) material. Under conditions of insufficient oxygen supply, or incomplete combustion CO can also be formed as well as fine particles of unburned carbon, or

Prediction Purpose The purpose of the investigation is to use calorimetry in order to determine the molar enthalpy of combustion of magnesium by using Hess’s Law. Question What is the molar enthalpy of combustion ∆Hc, of magnesium?

In this lab we investigated the energy content of two fuels by using them to heat water. We are to use two different types of fuel to measure the amount of heat produces by each fuel source. Our two fuel sources include propanol and ethanol. The objective of the experiment is to find out which fuel source has the better rate of heating and is more efficient by comparing the results to see which heat up the water to a specific temperature and seeing which fuel source used the least amount of fuel. After the experiment our data showed that the propanol was the more efficient fuel source.

The Use of Bomb Calorimeter in Measuring Enthalpies How a bomb calorimeter works? First, put the object that you want to measure inside the bomb. Once everything is plugged in and set up, the electricity passing though the wires, along with the supplied oxygen will combust the object. When is is combusted, heat will be given out.

1. INTRODUCTION Coal gasification is a process for producing a mixture gas consisting mainly of methane (CH4), carbon monoxide (CO), hydrogen (H2), carbon dioxide (CO2) and water vapor (H2O) -from coal and water, air and / or oxygen. This gas mixture is called synthesis gas. Earlier, coal was gasified using old technology to produce coal gas (also known as the "town gas"), which is a fuel gas used previously for municipal lighting and heating before the advent of the commercial scale production of natural gas. In current practices, instances of large coal gasification is used to generate electricity, as in the combined cycle with an integrated gasification for production of chemical feed stocks or for the production of gas natural synthesis.

N Silicon dioxide (SiO2), aluminum oxide (Al2O3) and iron oxide (Fe2O3) 77.3 Min 70.00 Sulfur trioxide (SO3) 0.34 Max 4.00 Loss on ignition (%) 2.26 Max 10.00 Table 4: Comparison of local natural pozzolan with Class N of ASTM C 618 Method: