Hydrogen

The hydrogen peroxide
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Introduction When a substance is heated, the particles move faster. When the particles are moving faster they will travel at greater distances which will involve more collisions. This will increase the rate of reaction. Concentration The more concentrated the reactants are the greater the rate of reaction. This is because increasing the rate of reaction increases the number of collisions between particles and therefore increases the rate of reaction. Pressure An increase in pressure can lead to an increase in…...
The collision theory
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The results should lie on straight lines. I will know from looking at the graphs, if I have any outliners. As you can tell from the straight lines. There are not any outliers and my results are correct. From this test I have decided that 2cm would be the best length to work with, as it provides a long enough time to record accurately the 2mole acid test, and it is also a reasonably short time for the 0. 5…...
The Affect of Hydrogen Peroxide on the Liver
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Aim: "To see what factors affect the decomposition of hydrogen peroxide by the enzyme catalase which is found in the liver" Introduction: Enzymes are biological catalysts. They speed up the chemical reactions which go on inside living things. Without them the reactions would be so slow that life would grind to a halt. Enzymes work by when a substrate molecule bumps into a molecule of the right enzyme, it fits into a depression on the surface of the enzyme molecule.…...
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Quantitative Tests For Identifying Organic Functional Groups
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Aldehydes and ketones can undergo a variety of reactions, but they share many chemical properties with other related compounds such as acids and esters. It is possible to detect the presence of an aldehyde or ketone by reaction with 2,4 dinitrophenylhydrazine this test only gives a positive result with aldehydes and no reaction with ketones, nevertheless carry out the tollen's reagent to find out whether the ketone is present. Alcohols are hydrocarbons with -OH replacing one or more hydrogen atoms.…...
What factors affect the volume of gas produced when magnesium reacts with an acid
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We are investigating the reaction of magnesium and hydrochloric acid: Mg + 2HCl MgCl2 + H2 The dependent variable will be the amount of hydrogen collected, the gas in the reaction. There are many independent variables I could use for this experiment: But the variable I will choose is length of Mg. I think this will definitely be the easiest to vary, as it is simply a case of cutting different lengths. It is a good one to choose also…...
Extraction of chlorine and iodine
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In the membrane cell an electric current is passed through circulating brine, on one side the brine is in contact with an anode and chlorine is liberated from chlorine ions producing chlorine gas. 2Cl (aq) Cl2(g) + 2e Figure 1 (1) the reaction at the anode. Here the chlorine ions have been oxidised to form chlorine atoms and have produced free electrons. In the cathode reaction reduction occurs, the hydrogen atom in water is reduced at the electrode. A steel…...
The Canalization Process of Hydrogen with Oxygen
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In the present study, it is assumed that the how is turbulent, with exothermal hydrogen/air reaction inside the PAR unit. A numerical solution of the mean how, the chemical reaction and the thermal fields requires solving the Unsteady Reynolds Averaged Navier-Stokes (RANS) equations, as well as the energy and species equations. The standard conservation equations within a URANS approach with the k-h model of turbulence are detailed in a previous publication by the authors [25] and not repeated here for…...
hydrogen bonds
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70136540Determining the Approximate Hydrogen Bond Strengths in Water and EthanolIntroduction:Intermolecular forces operate between neighbouring molecules. The forces result from the action of the kinetic energy of atoms and the positive and negative charges on different parts of a molecule that affect its neighbours.The three main categories of intermolecular forces are dipole-dipole interaction, van der Waals forces and the hydrogen bond.Dipole-dipole interactions is a week intermolecular force between the molecules which contain a permanent dipole. Ramsden E.N. described, molecules lead the…...
Hydro Energy as Alternative Energy Resource
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This is a serious issue in many countries and is harmful to humans’ and animals’ health, the environment and also increases pollution (Veziroglu 2007). Now, it is the time to face these problems by using clean energy such as solar, wind and water. Wagner & Mathur (2011) state that hydropower is the most efficient renewable energy, while Veziroglu (2007) claims that hydrogen is the key to the solution in the 21st century. Therefore, this essay will focus on energy sources…...
Is sulphuric acid dibasic?
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In this plan I shall demonstrate that sulphuric acid is dibasic. In order to do this affectively I will plan experiment using scientific techniques. The experiment will involve titration. I will then validate these experiments using calculations and appropriate chemistry knowledge. The reactants I have selected that will neutralise sulphuric acid are shown below in the equations: Reactants used in Titration and products obtained: H2SO4 (aq) + 2NaOH (aq) --> Na2SO4 (aq) + 2H2O (l) Background knowledge The acid (sulphuric…...
Effect of Hydrogen Peroxide Concentration on Enzyme Catalase
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Indroduction: Enzymes are proteins. They function as biological catalysts. They lower the energy barrier of a reaction so that the reaction can take place at body temperature. Also, they can speed up Metabolic reactions without being changed or used up. During a reaction, an enzyme molecule combines temporarily with the substrate. When the reaction is complete, the enzyme molecules returns to its original dorm and the product is released. So enzymes are never wasted and always recycled. Due to enzymes…...
Alternative-Fuel Vehicles
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Atmospheric pollution is a major problem nowadays. So it is important that we should immediately find alternative fuel sources for petroleum and reduce the emission of harmful gases in the atmosphere. This has been the dream of many scientists because this will significantly reduce the emission of carbon dioxide, a green house gas, to the atmosphere. Most of these fuels can be manufactured domestically so I cut the costs of importing from other countries. Some are even derived from renewable…...
Decomposition of Hydrogen Peroxide
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Abstract: This lab was designed to observe the decomposition of hydrogen peroxide into it oxygen and water. The equation for this reaction is H202 H2O + +1/2O2 thus by measuring volume and pressure of O2 generated the amount of O2 generated can be calculated which in turn can be utilized to determine the concentration of water already in the H2O2 solution. The results determined that 3.02% of the solution is composed of H2O2. Introduction: This purpose of this experiment was…...
Hydrogen Peroxide in the Presence of Yeast
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A number of different variables, such as the concentration of the hydrogen peroxide solution or the temperature at which the reaction occurs, can affect the rate at which yeast breaks down hydrogen peroxide. To prove this we first tested the solution with 3% concentration of peroxide, the paper that was soaked in yeast rose in 1.7 seconds. After that we changed our concentration to 2.25%, 1.5%, and .75% of hydrogen peroxide to see the effects it had on the amount…...
Discuss Why Hydrogen Bonding Is Essential for Life
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Throughout biochemistry there are many bonds without which life as it is on earth today would not be possible. One of the most important bonds of these is the hydrogen bond, a weak chemical bond that is present in essential biological molecules such as water and polypeptides. A hydrogen bond is defined by Campbell and Reece as occurring when a hydrogen atom is covalently bonded to an electronegative atom but attracted to another electronegative atom. In water molecules, there are…...
Heat of Decomposition of Hydrogen Peroxide
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Abstract Our main purpose is to familiarise ourselves with a method to find the heat of decomposition of a compound (hydrogen peroxide). Firstly, we will be looking at information about calorimeter and what it meant by heat of decomposition. Also, we will try to understand why we have to subtract the heat absorbed by the calorimeter to find the heat of decomposition of hydrogen peroxide. Therefore, we found the heat capacity of calorimeter. After that, the enthalpy of decomposition of…...
New Product Paper
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Set a price for a new to the world consumer (this means a product that is not on the market) product. Identify a new product you think could be successful on the market and set an introductory price for it. Use the following questions to structure your written analysis. a. What is the product name? Describe the product. The name of my product will be H2O run vehicle. The product is a vehicle, car or truck that uses water and…...
The Aldol Reaction Lab Report
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Purpose The purpose of this experiment is to be able to conduct an aldol condensation reaction using an unknown aldehyde and an unknown ketone. H NMR is used to identify the unknown aldehyde and ketone. Melting point is used to identify the aldol condensation reaction. Theory Condensation reaction is also known as a dehydration reaction. In the mechanism of condensation reaction, a bond is formed between two molecules and creates water as a byproduct. Aldol condensation is a C-C bond…...
Formal Lab Report
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I. Objectives : 1. To produce tert-butyl chloride from tert-butyl alcohol 2. To understand the SN1 and SN2 mechanism involved in the reaction 3. To determine the yield of percentage of t-butyl chloride II. Introduction An alkyl halide is a derivative of alkanes. Alkanes are hydrocarbons with a functional group C-C. The hydrogen atom is then replaced by a halogen (F, Cl, Br, I). Therefore, alkyl halides are compounds that have a halogen atom bonded to a saturated, sp3 hybridized…...
Chemistry Lab Observations and Report
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1. Write the balanced equation for the reaction conducted in this lab, including appropriate phase symbols.
Mg(s) + 2HCl(aq) --> H2(g) + MgCl2(aq) 2. Determine the partial pressure of the hydrogen gas collected in the gas collection tube. 
The partial pressure of the hydrogen gas is 1.07 atm 3. Calculate the moles of hydrogen gas collected.
pv=mrt ; n= .0013mol of hydrogen gas 4. If magnesium was the limiting reactant in this lab, calculate the theoretical yield of the gaseous product. Show…...
Honors lab Chemistry
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0.032 g Volume of gas collected (mL) 30mL Barometric pressure (atm) 1.1 atm Room Temperature (°C) 22 °C Vapor pressure of the water (torr) 19.8 torr Calculations: 1. Write the balanced equation for the reaction conducted in this lab, including appropriate phase symbols. (2 points) Mg(s) + 2HCl(a) + H2O(a) -> MgCl2(s) + H2 (g) 2. Determine the partial pressure of the hydrogen gas collected in the gas collection tube. (3 points) 1.1 atm = 0.026 atm + h2 3.…...
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FAQ about Hydrogen

What factors affect the volume of gas produced when magnesium reacts with an acid

...If I double the mass of Mg, it will double the volume of gas produced. The equation above shows us the molar ratio between Mg : H2 is 1 : 1. If the mass doubles, the number of moles of Mg doubles, the number of moles of H2 doubles so the volume doubl...

Discuss Why Hydrogen Bonding Is Essential for Life

...Concluding, it is clear to see that without hydrogen bonds, life, as we know it today would not exist. Water makes up most of the earths surface and is perhaps the molecule that is the most essential for life- providing stable habitats for marine and...