Boyle’s law says that volume increases when pressure decreases. Charles’ law says that volume increases when temperature increases. Avogadro’s law says that volume increases when amount of gas increases. The ideal gas law is the result of combining the three laws of gas. Avogadro’s Law:
The reaction was allowed to continue for twenty minutes and the volume of oxygen gas produced was measured. The decomposition of hydrogen peroxide is a very slow process; however, with the addition of the catalyst, KI, the reaction rate is increased and the decomposition occurs much quicker. The partial pressure of oxygen gas was calculated using the barometric pressure and the vapor pressure of water. From this the moles of I- were calculated and found to be 0.005 moles I-. The solution was then titrated with AgNO3 and volume used to generate the colour change was recorded.
The temperature in our experiment was not very high which didn’t result in denaturation of peroxidase. The temperature seemed to be a constant that didn’t affect the experiment. If the temperature was higher in pH 3 and low in pH 10, then it would cause pH 3 to denature even more which would make the pH 3 total about 4.0. Substrate concentration basically means the amount used for the substrate. The substrate in our experiment was 0.1% hydrogen peroxide.
Table 4.3 shows the density test in 1.0wt.%, 1.5wt.% and 2.0wt.% of magnesium doped calcium phosphate pellets at 1000ºC sintering temperature for five samples. The mean density of different concentration are measured based on the average of five samples.
The result of the force acting causes the object 's velocity to either change speed or direction. In conclusion, the impulse experienced by the object equals the change in momentum of the object, which can be seen in equation Ft = m Δ
Standard Atmospheric pressure in these U.S. common units is 14.7 lb/in2, so this must be added to the gauge pressure above to get the absolute pressure. Pressure Volume Temperature Relationships. Boyle's Law: The Pressure-Volume Law. “Boyle's law or the pressure-volume law states that the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure when the temperature and mass are constant.” Another way of describing it is saying that their products are constant.
The volume, temperature and pressure exerted by a particular gas are highly dependent on one another. This is explained by several Gas Laws. Boyle’s Law states that when the temperature is kept constant, pressure of gas is inversely proportional to the volume. Relating this principle to molar volume, the higher the pressure, the smaller the volume the gas particles occupies. When the volume of the container enclosing the gas is reduced, there are more gas particles per unit volume.
HAPZ administered at higher dose level has shown significant decrease in kidney weight when compared to cisplatin control group but the lower dose of HAPZ has no effect in this aspect. Serum urea In cisplatin administered group there was a remarkable significant increase (228.67%) in the serum urea level in comparison to the normal control group. The results indicated that the drug showed a dose dependent significant reduction in the serum urea level towards normal range.
Additionally, tray B displayed both the highest rate of removal (1.11 mg/l per day) and total amount removed (10mg/l), despite having a relatively low initial nitrate concentration at 30mg/l. The inverse applies for Tray D, which, despite having a relatively high initial nitrate concentration at 40mg/l, displayed the lowest rate of removal (with an average of 0.78mg/l removed per day) and total amount of nitrates removed (7 mg/l). This is in contradiction with both the literature (Yang 2013) and the second point of the hypothesis which stated that higher concentrations would result in faster removal rates, which, from the above, can clearly be seen is not the case, thus proving it incorrect. What difference did occur is likely due to either slightly different conditions with certain samples, namely tray B receiving more sunlight due to a slight difference in positioning and thus more favourable conditions or differing amounts of duckweed present due to the non-precise measuring technique used when distributing the duckweed.
In the time it took for the enzyme to break up 0.23 grams of egg white at the temperature of 40 degrees, it broke down nearly three times as much in a temperature of 65 degrees. We can see from the graph that the hotter the water bath was the more egg white protein were broken down (because some of the test pieces gained mass, the graph shows the largest LOSS in mass in negatives to distinguish the difference between gaining and losing mass, so if the graph shows negative this indicates the largest loss of mass). Looking back at my hypothesis we can see that it was not correct although some of the predictions were more accurate than others. I predicted that the enzyme would work best in the two middle temperatures as they were the closest to core body temperature. looking at my results from the experiment we can clearly see that this was not true, but instead the two lower temperatures of 4 and 21 degrees Celsius showed a gain in mass while both higher temperatures of 40 and 65 degrees Celsius clearly indicate the breaking down of the particles as their is a clear decline of mass.
The graph 1 shows the buffer capacity of buffer 1 is at pH 4.559 as it takes about 7.5 mL to change the pH. Whereas the buffer capacity of buffer 2 is at pH 4.756, which takes 5.9 mL to change the pH. These number shows buffer 1 has higher buffer capacity. The pH at 4.559 is significant as once the pH exceeded this value, the buffer will become ineffective.
1. The first step of my calculations was finding the number of moles of CaCl2 and NaOH added in each test. The volume of CaCl2 is an increasing number with a concentration of 1.0M. The volume of NaOH is constant for all four tests, but the concentration is 2.4588M. To find the number of moles of each reactant added, volume in liters was multiplied by the molarity (concentration). 2.
We found that Joules from NaCl = 340 J, NH4NO3 = 1340 J, CaCl2 = -2320 J, LiCl = -3600, Na2Cl3 = -720 J, NaC2H3O2= 1070 J. Then we used energy release from one one these rxn to calculate the Hor the KJ per mol rxn.
Chevy might have better MPG and is cheaper, but with the some research it is easy to tell which is the worst car. This is why the Dodge Challenger is better than the Chevy Camaro. "Compare”Some of the reasons that the Dodge Challenger is better than the Chevy Camaro is the Dodge Challenger has a higher horsepower and RPM. The Dodge Challenger has 305 HP and the Chevy Camaro only has 275 HP. Also the Dodge Challenger has 4,800
In addition, when both elements were carried out, it was noticeable that each of the test tubes feels warm. This indicated the reaction is an exothermic reaction because it produced heat. The pH level for magnesium chloride solution was neutral (not basic because of oxide layer) but basic for calcium chloride. It can be seen that calcium is more reactive than magnesium. This was because the lower the elements are down a group, the larger the size of its atomic radii.