1.0m Acid Results

The purpose of doing this lab was to apply the knowledge of chemical reactions to identify an unknown substance. Research was done prior to doing the experiment to provide a basic understanding of the chemical reactions occurring. There are two elementary aspects a chemical solution. First, there’s the reactant. The reactant is the substance added that reacts with another chemical, after the chemical reaction has run its course, what is left is called the product. There are about seven ways to tell if a chemical reaction has taken place; a few of which include color change, precipitate, the formation of gas, and temperature change. In this particular experiment, the question that was being investigated was: What is the unidentified chemical substance? The hypotheses made was: The unnamed chemical is Calcium Chloride considering each are clear liquids.

Does the amount of active ingredient in different types of tablets decrease or increase per milligram after its expiration date? Overtime, the concentration of acid in a low dose aspirin tablet increases, as the concentration of acid in a high dose aspirin tablet decreases. However, due to various experimental errors, the claim is not a strong and compelling one. What is assumed to have happened is that both low dose aspirin tablets and high dose aspirin tablets increase in concentration of acid as the expiration is surpassed.

In conclusion, this lab was a failure. Not only was the yield very small upon inspection, but the product’s composition was unknown due to the unknown solution. Given the nature of the lab, little yield was expected and observed, making the lab itself very particular in nature. Add to this the addition of the unknown solution and any produce was astounding. Not only unfortunate, the unknown solution was very dangerous. If it had been some solution that reacted violently with the reagents, there could have been unforeseen damage done to the lab and the individuals

This experiment has, in fact, proven my hypothesis to be incorrect, after looking through the results, I now understand why. My hypothesis stated that

One of our flaws was that the temperature of the water was not exactly the same when we did the different trials. The temperatures were slightly off from our recorded value during the experiments. The change in temperature would affect the time it took for the Alka-Seltzer tablet to dissolve in the water. If there was a direct relationship between water temperature and dissolve time, we would not be able to see it because the temperatures are off and the dissolve times are not associated with the correct temperature. Another flaw is that we did not use the same amount of water throughout the experiment. We used a beaker to measure the water, which did not result in accurate measurements. The difference in amount of water could result in a difference in reaction time. The third flaw in the experiment was that during the reaction of the warm water, the water in the cup overflowed and spilled, bringing some of the Alka-Seltzer tablet with it. There were different amounts of tablet in different areas of the water, which means a different amount of Alka-Seltzer remained inside of the cup in each trial. This difference would mean that data for the warm water would fluctuate and we would not have accurate

Substances A and B have an appearance of a white solid like. Substances A and B were put into a test tube and on the Bunsen burner. As a result, B melted faster than A. A was slow to melt. The reason why B melted faster than A is because it has a lower boiling point than substance A which made it melt faster. It also shows that A needs more energy than B to be broken down.

The purpose of this experiment was to investigate the effect that different liquids would have on gummy bears. To do this we brought in different liquids, such as Fanta soda, salt water, water, and baking soda water. My hypothesis is, If you put gummy bears in different liquids then they might dissolve or enlarge. This experiment was tested on 9-14-17 and my group and I started gathering data, we started with 1 minute, 5 minutes, and then 24 hours. There wasn’t much change in the 1 and 5 minutes, the real change happened overnight. The next day of this experiment the gummy bears had mostly enlarged and softened, there was one that accomplished to do the exact opposite, the salt water gummy bear decreased and hardened. I believe that the salt

These different mistakes during the lab caused the results to change during the

All of the tests were fair enough. Our first experiment was ⅓ (667 milliliters) and that test went very well. Our second experiment was ½ (1000 milliliters),⅓ (667 milliliters), and ¼ (500 milliliters). We tested all three bottle and it came down to two water amounts which were ½ (1000 milliliters) and ⅓ (667 milliliters). We used a mountain dew round cylinder bottle in all of our tests because it was the best type of bottle more than the rest of the bottle and we did a lot of research and that bottle was the most common bottle to build a bottle rocket . We filmed videos on both water amount and they both went really high except there was a .2 second difference between the two amounts. Overall the group decided that ⅓ was the highest since it beat ½ by .2 seconds. Some Manipulated variables are The water

This means that the amounts of acid and antacids may not have been equal for each trial. The size of the drops of acid and antacid could have been different. There are many ways that every experiment could be improved. One way would be to have two name brand antacids and two generic antacids. This would've helped us to figure out whether or not generic brands were better than name brands. Another way to improve the experiment would be to use larger amounts of the hydrochloric acid for each trial. Although it would be more expensive, the experiment would be more realistic to what people go through when they get heartburn. Also, using smaller amounts makes it harder to define whether or not the data is accurate. Since the units are smaller, it is a bigger difference when the data is inconsistent. The information gathered from this lab can easily be applied to the real world. Looking at the data, Rite Aid’s antacid was only effective when you used the same amount of acid as antacid. CVS and Gaviscon’s antacid only needed half of the amount of acid to neutralize. Rite Aid’s antacid wouldn't be useful for consumers with lots of stomach acid/

this is a strong acid and extremely caustic. Consumption of gases should be avoided. Any blows should be treated with camel and drink. Exuberance can

For example; there is a possibility that the measured value of the fluid is too high or too low because we misinterpret the reading as we got 0 seconds as our answer multiple times and we did not measure exactly 65ml of fluid (such as, Glycerin or golden syrup) due to thick viscosity. Additionally, when the object is released, we started the time earlier multiple times when testing the water solution. This is the reason why the time was quicker (0.00.50 seconds) when testing water and glycerin, but the third trial for water, the time taken was 0.00.54 seconds. This means that the marble reached the base quicker in water and glycerin fluid than water

The acid-test ratio subtracts the value of the firm's inventory from its total current assets . Because inventory is often difficult to sell , this radio is considered an even more reliable measure of a business's ability to repay loans than the current ratio . Calculate the acid-test ratio for each business and decides whether you would give either the loan . why or why not ?

In this experiment, the group was given two unknown solutions and were told to discover the pH of each solution and if the two unknown solutions could be neutralized. The question they were solving for was; “How do you determine whether two solutions are acids or bases and whether these two solutions will neutralize each other and change their pH level?” The hypothesis the group decided on was; “We predict that if the unknown solutions are acids they will turn the blue litmus paper red and if they are basic, they will turn the red litmus paper blue. We predict that one of the two unknown liquids will be acid and the other will be base, so if the two unknown solutions were put together, they will neutralize each other and have a pH around 7.” There was no other research done on this project.

The part of the method went really well was that we made steps for recovering time.. The recovering time was very important for our experiment, and it took the most part of the experiment.