Volume

pressure was set at two thousand psi with a (±0.1 psi precision. The beginning volume for carbon (IV) dioxide gas was set at zero while the liquid carbon (IV) dioxide at 14.7 cc with a (±0.001) cc precision. On the other hand, four temperatures were set at 79.7℉, 72.5℉, 77.0℉ and 75.2℉ with a (±0.1)℉ precision. All four temperatures were kept constant throughout the experiment period. It was observed that at 75.2℉ the volume…

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…

the density of copper while comparing the results of the density of water. While doing this experiment we had to remember the density of water, which is 1g/cm3. However, before trying to find the density we needed to make sure we had the mass and volume. We were given two ways to help find the density of copper and a beaker. I had to first measure the mass of the copper by picking it up and gently placing it in the analytical balance. Which then you’re given the mass, which you right down in…

the theoretical value, 22.4L/mol. In order to obtain that result through calculations, the water vapor pressure and the water height correction had to take place. After, the combined gas law had to be utilized and manipulated to find the volume and divide that volume by moles of magnesium. Being close to the theoretical value, 22.4L, it verifies that one mole of all gases occupy 22.4L in any container under standard temperature and pressure. This information could be valuable in many ways. For…

III. Results Table 2: KHP Vs. NaOH Titration data Trial Initial KHP acid Volume (ml) End KHP acid volume (ml) Volume difference (ml) Volume of NaOH Base Used (ml) 1 7 mL 16 mL 9 mL 10.0 mL 2 16 mL 27.5 mL 11.5 mL 10.0 mL 3 27.5 mL 38.5 mL 11 mL 10.0 mL Table 3: Titration of HCl with NaOH Trial Initial NaOH Volume (ml) End NaOH base volume (ml) Volume difference (ml) Volume of HCl acid Used (ml) 1 4.5 mL 14.5 mL 10 mL 10.0 mL 2 30 mL 41.5 mL 11.5 mL 10.0 mL 3 19 mL 31 mL 12 mL 10.0…

During the process of inhalation the external intercostal muscles contract, therefore pulling the chest wall upwards and outwards, these intercostal muscles are between the ribs. As the air is drawn into the lungs, this causes for the thoracic cavity volume to increases, during inspiration the diaphragm also contracts, therefore moving the diaphragm downwards. There are three more muscles that contract during the process of inspiration these muscles include the pectoralis minor which contracts…

structurally and functionally to assess how these abnormalities affect the workings of the brain. The hippocampus is a crucial structure in the development, effects and continuation of PTSD. The results have shown a statistically significant reduction in volume bilaterally, across all studies. The results also depicted hypo-responsiveness…

solvent c. Dissolving – where a solid is transformed into a liquid to form a solution d. Dilute – a solution with less solute dissolved in the solvent e. Concentrated – the amount of substance in a defined space, usually expressed in mass per unit volume, concentrations of different substances can be compared f. Saturated – a solution with a solute concentration that exceeds the capacity of the solvent to dissolve the solute g. Supersaturated – is where the solution dissolves more solute than…

lung capacity refers to the maximum amount of air a person’s lungs can hold (wisegeek.org, 2014). Breathing occurs in a cyclic manner due to the movements of the chest wall and the lungs. The resulting changes in pressure, causing changes in lung volume and lung capacity (humanphysiology.hubpages.com, 2014). An average human’s lung capacity can hold 4-6 liters, but only ⅓ of your lung capacity is used during normal activity, but this fraction increases during strenuous activity when the body…

know that ear buds can infect your hearing? Well, it isn’t the ear bud, it is the volume, most scientists say. You are supposed to have the volume turned low, or medium. Scientists say that the earbuds, and headphones aren’t the problem. It is the volume, it is tempting to turn it higher when you are on a train, or someplace where people are talking really loud. Some people lost their hearing, because of the volume of their music. Earphones can be good for blocking out background sound. To find…