Hence, the time taken for the reaction to be completed is reduced and the rate of reaction increases. Conclusion The experiment was conducted with the aim of being able to determine the activation energy of the reaction. Additionally, the effect of temperature on the rate of reaction was also to be
I predict that the more baking powder added to the vinegar, the more reaction will take place causing for more gas to be produced per 10 seconds. There will be a gradual decrease in difference between volume in gas per 10 seconds over the duration of time. I predict that the more baking powder is added, the more gas will be produced because there is more vinegar to react with baking powder The chemical name for baking powder is sodium bicarbonate (NaHCO3) and vinegar is acetic acid
According to the chemistry textbook, Chemistry higher tier, by increasing the temperature the rate of reaction increases. This happens because of the collision theory. The collision theory states that when particles are heated they gain more energy and move with a higher rate and force. Therefore
Rate of Reaction Experiment Rate of reaction is a term used to measure the time or speed that the reaction occurs in. A rate of reaction can be effected by different factors, such as the concentration, temperature, whether or not a catalyst is involved, the state that the reactants were in at the time of the experiment and the amount of pressure that was involved in the experiment. If the concentration, temperature and the amount of pressure involved were higher than the rate of reaction would be higher. Those factors would affect the speed and the amount the atoms are moving at therefore effecting the amount that the particles collide and hence impacting the rate of reaction.
Problem: How does the temperature of water used to dissolve an Alka-Seltzer tablet affect the amount of time it would take for the tablet to completely dissolve? An Alka-Seltzer tablet is a medicine tablet made with baking soda used as a pain reliever for “headaches, body aches, pain, heartburn, acid indigestion, and sour stomach” (Alka-Seltzer Tablets). It is put into water, left to dissolve and then consumed. When an Alka-Seltzer tablet is dropped into h20, a chemical reaction immediately takes place and produces bubbles made out of carbon dioxide as a product of the collision (Olson 2). When in its original powder (dry) form, the Alka-Seltzer’s two main ingredients: citric acid and sodium bicarbonate are just there and not reacting to each
Agitation rpm level tannase production Agitation rate was at a range of 50 to 250 rpm level was chosen to determine the optimal rate. It was found that an agitation rate of 100 rpm at pH 6.0 and 37°C maximum yield of tannase production of 3.12 U/ml (Fig.4) it was also noted that an increase in agitation speed above100 rpm resulted in a drastic fall in tannase enzyme production. The agitation speed below 100 rpm level resulted in an inadequate mixing of the broth towards of the broth. Towards the later stages of growth. Effect of carbon and nitrogen sources
Meaning that the more acidic to stable of the Hydrogen Ion concentration is the more soluble the bath bomb becomes. This data does not support the original hypothesis of “If bath bombs are designed with different concentrations, then the Sodium Bicarbonate bath bomb design will be the most soluble because Sodium Bicarbonate is a salt and has a high solubility in water.” The data showed that the citric acid and sodium carbonate mixture with an average pH of 6.4 disintegrated in 9 minutes and 19.44 seconds while the sodium carbonate took the longest time to disintegrate at 25 minutes and 27.69 seconds. So clearly the as stability of the Hydrogen Ion Concentration from an acidic solution, the less time the salt mixture takes to disintegrate but when the solution becomes basic the more time the salt mixture takes to
In FSOT column, the walls of capillary fused silica tubes are strengthened by a polyimide coating. This type of capillary column is flexible and can be wound into coils. All of these three types of capillary column are more efficient than packed
This is due to the fact that 100℃ is much more extreme than its usual environment, meaning that the catalase became denatured. The very high temperature would have broken the intermolecular forces within catalase, thus changing the shape of catalase and not allowing it to react with its substrate hydrogen peroxide. At 0℃, there was a reaction rate of 3, meaning that it was slow. This is because the low temperature would have strengthened the intermolecular forces and stiffen the structure of the enzyme, making it harder for an induced fit with the substrate (Carter-Edwards et al.,
The chloroform and caffeine mixture was collected and into a conical flask labeled A. The remainder of the solution was discarded. This was repeated for beakers B and C. 9. Sodium sulphate was then added to each beaker to dry the liquid by getting rid of any remaining water from the solution. The sodium sulphate was then filtered and discarded.
Studies show that we are more prone to kidney stones if we simply sit or being restful for a long period of time because limitations in the activity cause our bones to release more calcium. 2. High blood pressure increases the chances of being caught in forming stones in kidney. So, if you are the patient of high blood pressure, avoid eating salts, especially high processed salts found in canned and processed food. Salts tend to increase
It dissolves completely in water quicker than sodium. Alkali metals tend to react violently or explosively with the water; however its reaction with methanol is gentler. The reaction of sodium or potassium with methanol caused a fizzing (gas released) until the metal
As seen in the trend of both buffer, once the pH is lower than 3, the slope of dv/dpH increase drastically, showing the decreasing effects of the buffer. On the other hand, in the trend of both buffer on the right side of graph shows when NaOH is added, the change in pH is more drastic once past about pH 5. Although buffer 1 and buffer 2 shows a similar trend, the plot of buffer 1 is above the plot of buffer 2. The reason for this is that buffer 1 is made by an acid and base with an almost equal concentration. This makes buffer 1 a greater buffer compared to buffer 2. This is not true for Buffer 2 because the because NaOH was added to acetic acid to form acetate ions as conjugate base: