Substrate concentration basically means the amount used for the substrate. The substrate in our experiment was 0.1% hydrogen peroxide. The 0.1% is the concentration amount. Just like temperature and pH, substrate concentration can speed the reaction only up to a certain limit. When we mixed pH 3 enzyme tube with substrate tube, we used 0.3 mL of hydrogen peroxide, but if we were to increase the amount, then the experiment would have been faster.
The titrations were all a bit different and that was because they all contained different liquids. The first titration, acid into water, showed a noticeable drop in ph after approximately 5.5 mL of acid was added and was consisted in showing low numbers. This determined that the first hypothesis, stating that the pH would go up when acid was added into water, was false. Dissimilarly to the second titration, base into water, the pH showed a noticeable increase after around 10 mL of base was added and once again, remained consistently high in pH. The third titration, acid into liver homogenate, the pH decreased a bit at 8 mL of acid, but remained fairly consistent at 12 mL.
The pH of samples was stable throughout the first and second week of storage. However, on the third week of storage, the pH of orange juice preserved using sodium metabisulphite and the control sample decreased and were significantly different to other samples (P ≥ 0.05). The pH of orange juice preserved with sodium benzoate (SB), potassium sorbate (PS) and combined selected
The temperature was recorded. Using the pipette, 25 mL of the distilled water from the Erlenmeyer flask was filled and dispensed in the beaker. The mass of the beaker containing the water was measured and recorded. In addition, the volume of the water transferred was calculated using the mass and density from the Density of Water table. Finally, the difference between the observed and calculated volumes of water was
The Rf calculations of aspirin in table 1 shows an Rf value of .491; however, in table 2 the Rf value of aspirin was calculated to be .784. This Rf value is the higher among the other compounds because the Rf values decreases from aspirin to caffeine; therefore, this suggests that the
The slightly negative end of another hydrogen chloride particle will become attracted to the other end of the particle which has a slight positive charge. Therefore the two dipoles will become drawn together because the electrons are not shared between the two particles of hydrogen chloride. The melting point of hydrogen chloride is -85.05 Celsius however water has a boiling point of 100 degrees. Therefore this proves that hydrogen bonding in water is more powerful than hydrogen chloride because water is more polar than HCL . Water has a higher boiling water because more energy is needed to break the water molecules apart in hydrogen chloride.
The extended model of Traüble –Haines-Liebowitz. Cholesterol inhibits the water permeability of phospholipid membranes reducing it in nearly one order of magnitude at 1:4 cholesterol:phospholipid ratio. This is concomitant with a reduction in the lateral mobility of the lipids. According to the Haines-Liebowitz-Traüble model, permeability is connected to lateral diffusion . In FTIR spectroscopy, there is a reduction of the value indicating that the connected populations of CH2 increases with the cholesterol ratio, which is totally compatible with the water permeability decrease via the reduction of kinks .
By examining the data as a whole a trend of decreased cellular respiration in seedlings soaked in solutions with increased NaCl concentrations. The water treatment which had a 0% NaCl concentration had a higher respiration rate than the seedlings soaked in the 3% NaCl concentration. This overall trend of the data supports the
During one experiment the results were, they found out that the higher the temperature of the water the faster the molecules will move and the lower the temperature the slower the molecules move. The molecules are what are make the alka-seltzer dissolve. So if they move slower the alka-seltzer dissolves slower, same as if the molecules move faster than the alka-seltzer will dissolve faster. Also according to a state science fair the results were that it took 19.53 seconds for the alka-seltzer to dissolve in hot water, 36.15 seconds for the alka-seltzer to dissolve in the warm water, and 96.17 seconds (1 minute and 36.17 seconds) for the alka-seltzer to dissolve in cold water. The alka-seltzer dropped in the cold water proved to dissolve the
What happens during this stage of the experiment showing visual change and acidic reaction that is becoming weaker as the molecules are deprotonated to become equal parts within the solution. So by finding the molar ratios we learned that acid to base are 1:1 when equally balance or concentrated. So therefore concentrations at stoichiometric end point can be found by plugging in the values to formulate a dilution equation as seen above. When expressing calculations I found when doing the Titration of an Unknown Acid I discovered that with .1 mL of Sodium Hydroxide and at least 10 mL Anthocyanin as/or acetic solution will produce an average molarity of 0.9 or higher according to my