Chemistry Lab #1 THER 368: Heat of Neutralization Objective The purpose of this lab was to: * Determine the heat of neutralization for the reaction of sodium hydroxide (NaOH) and hydrochloric acid (HCI). Requirement The heat of neutralization (∆Hneutzn ) is the heat transferred when 1 mol of an acid reacts with 1 mol of a base. This heat is generally reported in either kilojoules per mole (kJ/mol) or kilocalories per mole (kcal mol). The reaction of HCI and NaOH solutions
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|Cellular Respiration | | |Role |Reactants |Products |Where does it | | | | | |Occur? | |Citric Acid Cycle
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acetophenone. Based on these data‚ it is possible to find alcohol by oxidation and aldehyde by observing precipitation Introduction This experiments is to find if one substance has alcohols‚ aldehydes or ketones. If one reactant is alcohol‚ the color of the reactant will be turned into green when 6 drops of potassium dichromate and 1 drop of concentrated sulfuric acid were added. Also‚
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amount of product produced from a precipitation reaction‚ to measure the reactants and products of the reaction with accuracy‚ and to discover the percent yield by calculating the actual yield and the theoretical yield The mass of the weighing dish was measured as 0.6 g. The mass of the filter paper was measured as 1.0 g. Initially it was calculated that 0.68 g of CaCO3 was needed for a full reaction. The net mass of Na2CO3 (reactant) was 0.72 g and the net mass of CaCO3 was 0.7 g. The dried calcium
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Introduction In this coursework I will be talking about the experiments‚ which I have done over two weeks. This gave different results by using different concentrations of hydrochloric acids (HCl) and indigestion relief tablet. I will also mention the time which was taken in the experiment‚ to see how fast the hydrochloric acid took with indigestion tablet with different concentrations. Indigestion tablets are alkali and they are used for to neutralise the excess acid in the stomach. Indigestion
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(e) Evolution of gas (f) Evolution of light (g) Evolution of sound‚ etc. Reactant and Product: Reactant: Substances which take part in a chemical reaction are called reactants. Product: New substance formed after a chemical reaction is called product. Chemical Equation: Representation of chemical reaction using symbols of substances is called chemical equation. Example: In this equation‚ A and B are called reactants and C and D are called the products. Arrow shows the direction of chemical
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animals and plants need to survive. There are important factors that help photosynthesis‚ water‚ light and carbon dioxide. Throughout this essay we will discuss the equation that is associated with photosynthesis‚ main energy carrying molecule‚ reactants and products of light reactions and photosynthesis in the Calvin cycle. Photosynthesis Equation As stated in the intro photosynthesis‚ “is the process is where plants use “light energy from the sun that is converted into carbon dioxide and water
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concentration of a substance and temperature‚ and observe the effects. Hypothesis Concentration and temperature will both increase the rate of reaction in accordance with collision theory. Introduction The reaction rate or rate of reaction for a reactant or product in any given reaction can be defined as the speed with which a reaction occurs. For example‚ the oxidation of iron (rusting) is a slow reaction which can take many years‚ but explosive combustion‚ such as the ignition of fuel‚ can take
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reactions‚ describe what happened in each well. If a chemical reaction occurred‚ write a balanced equation for it. Then using the A‚ B symbols‚ write a general equation for a single-displacement reaction. Here are the chemical formulas of the reactants for each reaction: • zinc – Zn copper sulfate – CuSO4 • aluminum – Al copper sulfate – CuSO4 • zinc – Zn silver nitrate – Ag(NO3) • copper – Cu silver nitrate – Ag(NO3) Answer: (8 points)
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dissolves in the solution‚ and the water mixes in. Rate of Reaction The rate of a chemical reaction is a measure of change of given quantity with time. There are two ways to measure the rate of a reaction: 1. measure the rate at which a reactant is used up 2. measure the rate at which a product is formed Collision theory is used to explain how different factors affect the rate of chemical reaction. The collision theory states that for a reaction to take place between reacting particles
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