Solubility equilibrium

The beginning of the lab contained a substantial amount of information detailing what chemical properties make up the structure of a salt hydrate. It provided essential knowledge proceeding to the successful completion of this lab such as the idea that hydrates are salt compounds which have formed weak bonds to water molecules that can easily be broken through the use of heat. With this information in mind, it was expected that a series of procedural guidelines following this information be used…

happen. The first one is that a dilute solution. That happens when the solution has less solute than the maximum amount that it is able to dissolve. The second one is saturated. That happens when the amount of solute is equal to the amount as its solubility. The third one happens “if there is more solute than is able to be dissolved, the excess solute separates from the solution.” Said by Antoinette Mursa of UCD and Prof. Kenneth W. Busch.…

I. Science fair Question What material will make ice melt fastest? II. Background Research Did you ever wonder what makes ice melt fastest? This research paper is going to talk about how ice melt works. Terms that will be discussed in this paper will include freezing point, Phrases of matter, freezing point depression, and solution. Freezing point is the point when water turns into ice (What Makes Ice Melt Fastest). If you have ever lived in a cold climate, you have most likely have seen…

The second part involves finding the best speed for optimization. Eight different tests will be performed. Four in the first part and four in the second part. Each test will involve about 800 mL of the sample. In the first part, four tests were created of alum concentrations of 0, 5, 20, and 40 mg/L. All were subjected to the stirring apparatus at the same speed of 30 rpm for 15 minutes to allow for flocculation. Initial turbidities were taken before starting the mixing. After being mixed, they…

This experiment will allow us to determine the molar mass of the unknown solute through calculating the difference in freezing point of the pure solvent and the solution with the unknown solute. This lab will show case one of the colligative properties of a solution. This property is dependent upon the number of solute molecules or ions and not the identity or chemical property of the solute. A common example is water which both freezes and melts at 0°C no matter the amount of water or the size…

In our hypothesis we predicted that if borax is added to a laminated rubber-plastic composite it will strengthen it and the end product will have a higher puncture strength. From the data that we got by testing our plastic, it is maybe supported, but I cannot confidently say it is true judged by how weak our all data inclination is. The overall higher puncture strength is when we added 12 mL of borax to our laminated plastic. It may have been because borax is sticky substance and can cause the…

In this investigation, the mass (g) of a beaker and a graduated cylinder were calculated and recorded into a lab notebook. The density of distilled water was calculated without any NaCl by measuring the mass of a sample of water in a beaker, and then subtracting the mass of the beaker to leave the mass of water. This measurement was recorded into a lab notebook in Table 1 under “Total Mass of Solution” and “Mass of solution”. The contents of the beaker are then transferred to a graduated…

For part 2 of the experiment (please refer to next page for Figure 3), Figure 3 shows a graph comparing the absorbance readings of the Glutamate-pyruvate aminotransferase serum with the time in minutes. A similar rate was predicted to occur for both the assays done. This would be characterized by the readings showing two parallel lines on the graph. However, the two first readings did not demonstrate this. This could possibly be due to different and insufficient amounts of NADH+ being added to…

The definition of an accelerant is a substance that accelerates the speed of fire or makes a fire more intense (Accelerant | Define Accelerant at Dictionary.com, n.d.). When forensic laboratories have debris that was collected from a crime scene they can use either the Headspace or the Vapor Concentration techniques to determine if there was an accelerant used. Both techniques use Gas Chromatography, which is separating mixtures based on their distribution between a stationary liquid phase and…

charge. Two opposite charges get attracted to each other and that is how the Iron was attracted to the Magnet. When it comes to the separation of Sand and Sodium chloride, they were separated because of the unique property of Sodium Chloride which is solubility. When the mixture of Sand and Sodium chloride was mixed in the water, the sodium chloride had the capacity of being dissolved in the water leaving the sand undissolved. When the mixture was filtered using a filer paper, the Sodium…