Hydrobromic acid

The purpose of this experiment is to identify an unknown substance by measuring the density and boiling point. I will be able to conclude which substance is my own from a list of known options stating what its real boiling point and density is. My given unknown liquid code is G9R. This liquid is clear, has a fluid consistency similar to water, and has a strong odour that reminds me of alcohol. Density using a graduated cylinder: Trial 1 Trial 2 Trial 3 Volume of liquid (mL) 15.0mL

Conclusion: This lab is finding the molarity of NaOH by the titrating with HCl. The experimenter is dropping NaOH and when the solution’s color change, swirl the solution when it changes to transparent. By repeating this process, the experimenter finds the molarity of NaOH. At first trial, initial volume of NaOH was 37.00mL and we used 1.00mL for the titration and the final volume of NaOH was 38.00mL and the molarity of NaOH was 0.50M NaOH. At second trial, initial volume was 38.38mL and we used

indicator (red cabbage juice), which can be able to identify whether it is an acid, base or neutral. Acids are aqueous solutions that contain H+ (hydrogen) ions. When identifying acids, they relatively have a sour taste, like the citric acid which is found in fruits. Some acids are safe to consume, however there are some acids like hydrochloric acid, nitric acid and others that cannot be eaten, as they are highly corrosive. Acids are also electrolytes which means they can conduct electricity. When it

Mariam Sy May 8, 2014 Acid- Base Titration Lab Write-up Introduction: Titration is the process of adding measured volumes of a base or acid with a known concentration to an acid or base with an unknown concentration in order to determine the unknown concentration. Volume measurements play an important role in titration. It involves measuring the exact volume of a solution with a known concentration that will react with a measured volume of a solution that has an unknown concentration. The

Nickel is a transient metal with melting temperature of 1455C under atmosphere. So the initiated growing temperature was 1000C with the mixed gases of argon, hydrogen and methane. Argon was served as the buffer gas, which created an inert environment, hydrogen helped in the annealing process, and methane was served as the carbon sources. For using nickel as the catalyst for synthesis graphene, different parameters used will yield graphene with different number of layers and different quality. The

three different sizes: small, medium and large. The purpose of this Lab was to study the surface area to volume ratio in cells and see how this ratio affects cell size. Phenolphthalein (C20H14O4) is one of the most common acid-base indicators used to determine the end point in acid-base titrations. Sodium hydroxide (NaOH) is an inorganic compound also known as lye. When exposed to each other, these two compounds made the Agar cubes turn magenta (pink). Diffusion occurs along diffusion gradients going

lab you will need to know what an equivalance point is in order to complete the lab. An equivalnce point is when or stoichiometric point, of a chemical reaction is the point at which chemically equivalent quantities of acid and base have been mixed. In other words, the moles of acid are equivalent to the moles of base. It can be found by means of an indicator, most often phenolphthalein. You can find find an equivalance point by being precise and not going to fast it is recommended that you should

According to Fig.7 acetaminophen efficiency removal is higher than 95% during the whole experiments. But fluoxetine although has high removal efficiency in the first week exposes to a severe decrease in days between 6-23, and it takes time to gain the ability of fluoxetine removal again. In the last week of experiment (23 to 30th days), fluoxetine removal has increased from 30 to 80%. The main two mechanisms of pharmaceutical contaminates removal are adsorption and biological degradation. For acetaminophen

The purpose of the lab is to determine the molar concentration of acidic acid in vinegar by titrating it with a solution of NaOH. The sodium hydroxide is a basic solution. When adding it to a acetic acid, a neutralization occurs. An indicator is added to the solution. The indicator is a dark pink color. When the NaOH is added, it makes the solution more basic and causes the solution to turn light pink. The experiment is successfully completed when the right amount of indicator is added, and It turns

is added to sodium sulfide solutions to help the sodium sulfide dissolve. Once the sodium sulfide is dissolved it forms positive sodium ions and negative sulfide ions. Thus causing sodium hydroxide dependent variable to be the volume of Hydrochloric acid used in titration. The independent variable to be the concentration of sodium hydroxide used in the experiment. The controlled variables is the volume of sodium hydroxide used in titration process. After the positive sodium ions and negative sulfide