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Solubility Of Solute In Solvents

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In this paper, the research conducted will be on the solubility of a solute in a solvent. In everyday situations, solutions are created through solubility. Mixing sugar into our coffee in the morning is and example of solubility, in that we add enough sugar to our coffee to create a homogenous mixture. If more sugar is added to the coffee, to the point of the sugar no longer able to break down, we would no longer have a homogenous solution. Different variables can alter the amount required for a solution or result of a solution, such as temperature and pressure. Different chemical makeups of the solvents or solutes can change the result of the mixture as well, such as the polarity of the mixture, and elements involved. Before discussing the …show more content…

Solutes and solvents can be in the form of a solid, liquid, or gas form to be considered a component in the reaction. Depending on the form a solute is present, the solubility of the solute can differ. Other factors can play a substantial role in how or when a solute will dissolve in a solvent. Temperature is usually the biggest factor to consider when solubility is being recognized. A solute or solvents temperature can effect the kind of reaction that will take place, and effect the solubility of the solute. As the temperature increases, the inter-molecular forces can be more easily broken, allowing more of the solute particles to be attracted to the solvent particles. Not to say that temperature will always change the inter-molecular force of a …show more content…

The relationship between the solubility of a gas and the pressure applied is best described in Henry's law. Henry's law states that "At a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid." Henry's law states that the partial pressure of the gas above a liquid is directly proportional to the solubility of gas in a liquid. If the pressure is increased, the gas molecules are forced or inserted into

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Next, about 10 mL of both solutions, Red 40 and Blue 1, were added to a small beaker. The concentration of the stock solution were recorded, 52.1 ppm for Red 40 and 16.6 ppm for Blue 1. Then, using the volumetric pipette, 5 mL of each solution was transferred into a 10 mL volumetric flask, labelled either R1 or B1. Deionized water was added into the flask using a pipette until the solution level reached a line which indicated 10 mL. A cap for the flask was inserted and the flask was invented a few times to completely mix the solution. Then, the volumetric pipette was rinsed with fresh deionized water and

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These increases in kinetic energy then result in an increased movement of both oxygen molecules and water molecules, which causes intermolecular forces to break. This braking of inter – molecular forces allows oxygen to escape into the air which results in a lower saturation. Decreases in temperature result in minimal movement between the molecules, keep the saturation level at a high rate. Past results indicated water temperatures of 23.1 degrees Celsius to 22.9 degrees Celsius, whereas current results show water temperatures of 27.1 degrees Celsius. As solubility changes with fluctuations in temperature, colder water temperatures have higher saturation levels than warmer water temperatures, hence why past results have higher saturation levels.

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The boiling point of the solution will be higher than that of the pure solvent itself. The boiling point of a liquid is the temperature at which its vapor pressure is to equal the atmospheric pressure. When a solute is added there are less solvent molecules near the surface and the solvent’s vapor pressure will decrease, so the vapor pressure of the solution will be less than that of the solvent. For the vapor pressure to reach the atmospheric pressure, a higher temperature must be reached, which means the boiling point is elevated. According to this theory, adding salt to water would make the boiling point higher, and make it harder to reach the boiling point.

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Introduction Solubility is a chemical property that is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. The resulting solution is called saturated solution. For example when a sample of sodium chloride solution in water is heated the behavior of the reaction is endothermic obstructing exothermic behavior. Another relationship that can be said about solubility is that the solubility of a solid substance increases as the temperature increases. The solubility of solutes is dependent on temperature.

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