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Chemistry Essays

Chemistry essays are different from those who are more related to creative writing. They should be based on critical thinking, logic, and proper evaluation. Sometimes these essays are built on solving chemical equations and other problems. You need to have the solid theoretical background to prepare homework which deserves the highest grade. When students cannot cope with the tasks alone, they seek help at writing service. Our company is one of the best in this specialization. We do not only offer free samples on any topic but help with preparing the entire work within the quickest time.

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Identification of an Organic Unknown Said Q

I am given an investigation which I have to plan myself; it is about an unknown organic compound that is either an alcohol, aldehyde, ketone, carboxylic acid, ester or phenol. I have to suggest a series of simple chemical tests, which could be done in test tubes, to distinguish the …

To Investigate the Percentage of CaCO3 in a Sample of Marble

Materials used: * Beaker * Conical Flask * Measuring Cylinder of 15 cc * Burette * Indicator * Clamp Stand * Pipette * Beam Balance * HNO3 of 2M concentration * NaOH of 2M concentration Procedure : * Crush the sample of marble in to small pieces, and take 1 …

Nuclear Fission and Fusion

During radioactive decay, atoms of one element are changed into atoms of another element through the emission of alpha or beta particles from their unstable nuclei. With alpha decay the nucleus emits an alpha particle, which is essentially a helium nucleus; a group of two protons and two neutrons. It …

A Redox Titration between Manganate (VII) and Iron (II)

Objective: To determine the x in the formula Fe (NH4)2(SO4)2�xH2O by titration against a standard solution of potassium manganate (VII) (permanganate). Theory: The experiment involves a redox reaction between potassium manganate (VII) and ammonium Potassium manganate (VII) is used in the experiment as it reacts completely and it is its …

Who's Cheating on the Vinegar?

Vinegar is an ethanoic acid. A wholesaler supplies chip shops. Design an investigation which identifies which chip shops are watering down the vinegar. Background Theory All acids contain the element “hydrogen”. Water ionises the hydrogen to make it H+. To react all acids have to be ionised. Strong acids are …

Is Sulphuric Acid Dibasic?

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 …

Determination of the Content of Mg (OH)2 in an Indigestion Remedy by back Titration

Milk of Magnesia (Magnesium hydroxide mixture) is a mildly basic mixture, which is commonly used in the treatment of constipation and indigestion, because it neutralises excess acid it is called an antacid. Magnesium hydroxide draws water into the colon by osmosis and induces peristalsis and is therefore also known as …

Chemistry Lab: Classifying Unknown Substances

Hypothesis: If solution of compound and water has high conductivity level, compound is ionic. If compound dissolves in water quickly, it is ionic. If compound takes a long time to melt (high bp), it is ionic. If compound is crystalline, it is ionic. If solution of compound and water has …

Making a Standard Solution and Titration to Find Molarity of Unknown Acid

To find the molarity of the unknown acid, first we had to create a standard solution, the solution we created was Sodium Hydroxide (NaOH). We wanted a 0.1 molar solution of sodium hydroxide so to get this we had to dissolve 4g of NaOH into 1000cm³ of water, but we …

Titration - Preparation,Neutralisation and Applications in Industry

Aim: To make an accurate Sodium Hydroxide solution ready for titration. Apparatus: Sodium Hydroxide pellets, Pipette, Distilled water, Volumetric Flask, Spatula, Weighing scale, Goggles. NaOH: 23+16+1=40g. 40g NaOH in 1 litre (1000ml) 10g in 250ml 1g in 250ml 0.1 molar Method: Firstly we weighed out exactly 1 gram of the …

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