Solute Lab Report

The results collected based on this experiment were to some degree surprising. I was surprised about the length of time it took for the beaker containing the cold water and Alka Seltzer tablet to dissolve. I predicted it would dissolve the slowest, however taking less time than it actually did, 2 minutes 43 seconds. I didn’t think it would take longer than 2 minutes for the Alka Seltzer tablet to dissolve. I wasn’t however surprised that the beaker containing hot water dissolved the tablet the fastest, as I had learnt that an increase in temperature increased the rate of

First students obtained 8 graduated cylinders and labeled them. Each one contained a different ratio of vinegar and water. These graduated cylinders with the liquid were weighed and recorded.Then, students obtained an Alka-Seltzer tablet and recorded its mass. Then one alka-seltzer tablet was dropped into each of the graduated cylinders. Students had to

Experimenters found that as since the tablet was so fragile due to its components (sodium bicarbonate and citric acid, both of which are not strong substances and can dissolve with water), parts of the tablet would unevenly break off during the scoring process. This would result in the material of the tablet breaking off and being unable to use as a part of the experiment, due to greater surface area that was unintentionally created. Therefore, the accuracy of the experiment was ±0.5g, as the total mass of the Alka-Seltzer tablet was

How does the dissolve rate of the Alka-Seltzer tablets change as the temperature of the water changes? The dissolve rate is being affected by the temperature of the water. Temperature is a measure of kinetic energy in molecules (NYU). The higher the temperature, the higher the kinetic energy. Energy is required to create a reaction. Molecules with more energy come into contact with each other more often. The molecules of the reactants have to come into contact with each other, so more energy in molecules result in faster dissolving time.

Hypothesis: Altoid and Smarties will dissolve the fastest and Sweet tarts will dissolve the slowest.

When the tablet was broken down into pieces the reaction occurred quicker than when a whole tablet was used, and when it was crushed it occurred even quicker. Reactions take place only at the surface of the solid, therefore, increasing the surface area makes the reaction occur faster. Analyzing the data in Table 3 indicates that having an acid solution like vinegar made the dissolution of the tablet proceed faster than the one with the salt solution. This was because these two agents acted as substances and speeded up the dissolution of the Alka-Seltzer.

Test tube B melted faster than test tube A, which relatively stayed the same. With the data collected, the test tube B melted faster and was predicted to be maleic acid. 2. During the second part of the experiment, 0.5g of both substances were obtained to determine the solubility of each.

One important effect on the solubility

We created a mixture by pouring about ¼ of the substance into the water and stirred it. The independent variable was the temperature, and the dependent variable was the solubility. If a substance dissolved in the solvent, then it was considered water-loving or soluble,

Water boils at 212 degrees Fahrenheit; it freezes at 32 degrees Fahrenheit. If you add a solute to the water (solvent), it may change the temperature at which the water will boil or freeze. Depending on the solute, the solution may boil at an elevated temperature. The solution may also freeze at depressed temperature. If there is a change in the temperature, it will be because of the solute added to the solvent.

I believe that the hot liquids was faster for the alka seltzer to disappear. The heat was evidently more effective for the tablets since the chemical bonds began to separate the atoms from its group. It was a two out of three because the hot water and the hot tea reacted faster than the milk. The answer to “When did the alka seltzer finish its chemical reaction?” varies for the three liquids. In the beginning once I put the alka seltzer inside, the water started to fizz up and created tiny bubbles.

This lab experiment aims at using different techniques of dissolving and extraction to test the rates of solubility of different substances that have both similar and dissimilar substances. Each experiment was based on the idea of like substances dissolving each other, which means that polar substances can be dissolved in polar substances, and non-polar substances can be dissolved in non-polar substances [1]. To add, each experiment required that both dissimilar and similar substances are mixed in order to develop layers resulting from the immiscibility (inability of substances to mix) which will ultimately enable similar substances to be extracted. The different kinds of layers that formed were organic or aqueous; organic mainly consisted

For our hypothesis we thought that the seltzer would dissolve the alka seltzer the fastest, because the seltzer was already carbonated. After doing the experiment we found out that the seltzer was the 2nd fastest at dissolving the tablet, and the water dissolved the alka seltzer 6 seconds faster than the seltzer. This being said our hypothesis turned out to be wrong because the water (fastest to dissolve the alka seltzer) has fewer chemicals, so it dissolved the tablet faster. We thought the less chemicals the slower the alka seltzer would dissolve. Although after conducting the experiment we found through data that the more chemicals in the liquid, the slower the tablet would dissolve in them.

The ability a substance has of dissolving is known as, solubility. Solute, is the substance being dissolved, while solvent is the substance in which the solute is being dissolved in. The final product of a solute and solvent mixing together is known as, a solution. Considering the fact that the research question states that the purpose of this experiment is to understand how the mass of brown sugar effects the time it takes to dissolve in 50ml of water, the solute of this experiment would be brown sugar, while the solvent would be the 50ml of water. Five different masses of brown sugar will be experimented throughout this experiment, 5g, 10g, 15g, 20g and 25g, with three trials for each mass.

The purpose of this lab was to study colligative properties. These properties are properties that are affected when a solute is added to a solvent. Thus, the amount is important, not the actual type of substance, for the colligative properties. A couple types of this property are the freezing point and boiling point of a substance. (1)