Sodium Essays

Separation of a Mixture of Solids

The Discussion of this experiment began with discussing how many materials we use today are actually mixtures of pure substances. The separation of these materials into their pure substances can be quite challenging. When we are discussing separations of a mixture that contains pure substances, it all depends on whether you can separate the substances by physical means. That means, utilizing each substances physical properties such as boiling point, melting point, and magnetism. Separation of a Mixture of Solids Lab…

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Impure Sodium Carbonate

Introduction: To determine the total amount of carbonate in unrefined sodium carbonate, soda ash, a titration is done using a standardized solution of HCl. Aqueous HCl is a strong acid and therefore almost completely disassociates into H+ and CL-. Therefore, when HCl is used in a titration, the H+ is the titrant. Carbonate in aqueous solution is able to accept a proton, i.e. it acts as a base. When carbonate accepts the H+ a bicarbonate ion is formed. Na2CO3(aq) +…

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Salt Paper

In its mineral form sodium chloride, NaCl is known as common salt. It is important because it is essential to the health of human beings and of animals. For domestic use it is fined down to what is known as table-salt and small quantities of other chemicals are added to it to keep it free-flowing when in contact with the atmosphere. Salt and potassium are combined to produce iodized salt, used when iodine is lacking in diet. It s absence…

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Homemade Lava Lamp

My science project is on the No Light Lava Lamp. I will record what happens when I mix vegetable oil and water in an empty water bottle. Most materials are classified into two different categories in relationship to the way they mix water. Hydrophobic substances are chemically unable to mix with water (the word hydrophobic means “water-fearing”). Hydrophilic (meaning “water-loving”) substances, can easily dissolve in water. In addition to the density difference, the reason that you will always see a…

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Sodium Acetate

Claim: Relatively pure isoamyl acetate was isolated by elimination reaction as compared to the SN2 reaction. Evidence1: A flask containing isoamyl bromide (6 ml, 0. 050 mole) and potassium acetate (6 g, 0. 05 mole) in 10 ml of dimethyl formamide was positioned in a steam bath and then mounted on a magnetic stirrer. The mixture was heated and magnetically stirred simultaneously for two hours. A white precipitate was found at the bottom of the solution. The mixture was set…

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Investigating Stoichiometry

In this experiment we are going to get a better understanding of chemical stoichiometry. We are going to be reacting sodium bicarbonate (NaHCO3) and sodium carbonate (Na2CO3) with hydrochloric acid (HCl). To start off the mass of two unknown substances (being the sodium bicarbonate and sodium carbonate) will be taken. We will need to construct balanced equations for both of the reactants with the HCl and use this to guide us to figure out how much HCl will be needed…

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