Sodium chloride

Procedure: To begin this experiment all of the equipment was collected. The materials used in this experiment were a small plastic weighing dish, oxalic acid, a 250 mL Erlenmeyer flask, distilled water, a buret, NaOH solution, a 150 mL beaker, funnel, and phenolphthalein indicator. Before the experiment began the buret was cleaned with distilled water, a buret brush, and dish soap. The buret was completely washed out in order to not cause any faults in the results of the experiment. Once the…

In this experiment, the goal was to figure out which solute would be the best at neutralizing stomach acid the quickest. As baking soda was added to stomach acid, then the time for neutralization was the quickest. From the data chart, baking soda had the largest average pH of 6.6. On the graph, it show how baking soda had the highest peak and how it was the closest to reach 7 than any other substance. The hypothesis is supported because baking soda was the antacid that was closest to…

The number of moles of hydrochloric acid neutralizes for the three trials (2,4,5) were calculated using stoichiometry. It was calculated for trial 2 by convert 4.88 mL NaOH to L by divide by 1000 mL. Then, to get to mol of NaOH the molarity of NaOH was multiplied by 0.00488. Then to get from NaOH to HCl, the mole ratio 2 HCl to 1 mol NaOH was multiplied by 0.00122. To get the amount of HCl per beaker, 100 mL of HCl was divided by 1000 mL to get 0.1 L. Then, the liters were converted to moles by…

Each test yielded its own unique set of observations, calculations and results. In order to determine these various values through calculation, the experimental data as well as the chemical reaction of calcium hydroxide was used for all calculations. The chemical equation is displayed below: The first experiment determined the molarity of OH- and Ca2+, the Ksp and the ΔG for saturated calcium hydroxide at 21°C. In order to determine these values, the experimental data as well as the chemical…

For the following lab, the purpose is to utilize titration to determine the amount of ascorbic acid (vitamin C) present in a substance by reacting it with potassium bromate. An oxidation reaction takes place with ascorbic acid to produce dehydroascorbic acid, using an excess of bromine. The total amount of bromine utilized during the experiment is determined utilizing a back titration, in which the bromine is reacted with bromate. One mole of bromate produces three moles of bromine and the…

volume of NaOH used. The purpose of this experiment was to determine the [unknown acid] by titrating it with a standardized NaOH solution using phenolphthalein as the indicator. NaOH and the unknown acid HA react as shown in reaction below to form sodium salt and water: NaOH (aq)+HA(aq)→NaA(aq)+H_2…

CONCLUSIONS: The purpose of this experiment was to find the concentration of the unknown base (NaOH) through a titration. In the experiment, it took 0.95 mL of NaOH with a concentration of 0.53 moles to neutralize 5.0 mL of a 0.100 M of HCl. In the expected result, the concentration of the NaOH was 0.50 moles. The percent error for the lab was only 6%, which means the lab had a fairly high accuracy. Differences between the expected results and the actual result would be caused by the sources of…

Brugada syndrome. Another indicator of this disease would be that the electrocardiogram would show change occurring with the electrical activity of the heart and it will oftentimes be concealed. One way to fix the concealed ECG would be to conduct a sodium channel blocker. Studies were…

and 37% HCl solution (20 mL) to form 1.0 L solution. Both the stock solutions were sonicated to form clear solution. Cu2+ stock solution was prepared by adding water to a mixture of CuSO4·5H2O (5.0 g, 20 mmol), distilled water (700 mL), potassium sodium tartrate tetrahydrate (25 g, 89 mmol), and NaOH (7.0 g, 0.18 mol) to form 1.0 L…

taking his medications accordingly. Including the wife in the teaching each time is a priority because she is the only one he got, if she is not involved we may as well not teach the patient at all. A good method to use to teach concerning the low sodium diets teaching should start on admission. By asking the patient in plain language about his knowledge about a low salt diet and what would he choose on a regular day for breakfast lunch and dinner? To discover the attitude of the patient…