The reaction between Propanone and iodine under acidic condition Aims To find the order of reaction with respect to propanone, iodine and sulfuric acid, thus proposing a rate equation. Find rate constant at various temperature and with the use of the Arrhenius equation, find the activation enthalpy of the reaction. General Method {For step by step guide of the experiment see preparation page} By using known concentration of aqueous iodine solution (0.000 moldm-3, 0.005 mol dm-3, 0.015…
Premature Ventricular Contractions (Pvcs) Overview- Premature ventricular contractions (PVCs) are abnormal, extra heart-rates that initiate in ventricles, one of your heart's two lower pumping chambers. These additional pulsates disturb your normal heart musicality, in some cases making you feel a flip-flop or skipped beat in your chest. Premature ventricular contractions are extremely normal, mainly it occurs in most of the people at some time. If you are infected by ventricular constrictions,…
Risk Taking Risk taking is one of the most influential deciding factors in whether a person makes it big or remains ordinary. A generally accepted idea is that the higher the risk a person takes, the greater the potential profit will be. While managing risk is an imperative skill to possess for maintaining wealth, learning to take risks in the first place is what makes wealth. The research conducted on “Rags to Riches” Americans shows that every single person took a significant risk at some…
Budgeting is the process of creating a plan of how to spend the money. A budget is an estimate of revenue, cost, and resources over given stipulated period of time (Lee, 2012). In other terms, a budget is a tool for deciding on which activities to be undertaken in future. The major common types of the budget include the sale budget, financial budget, operation budget, and master budget (Kelly, 2015). For the case of Barney and Co, the decrease in sales can be salvaged through decreasing the…
races, and genders experience greater pressures on their health. Richer, more developed nations, such as the ones in the Global South have established universal healthcare and education and as a result, citizens of theses countries have lower birth rates, higher use of reproductive contraception, greater literacy and more economic stability than those of the Global South. Ultimately, the inequalities that plague women are all interrelated. Poverty, leads to less capital to spend on medical care…
be of a particular interest to the person or a group of people. Acts of political courage are therefore the actions that political leaders take to safeguard the interests and the rights of those they stand for either at local, state and the national level regardless of the risks associated with such actions. Political classes have various personal interests they wish to safeguard at all costs hence those taking actions that in one way or the other seem to threaten such interests, put their lives…
To improve the yield of the ester the reaction should be heated using a high temperature. This would favour the formation of the products in this reaction, as the formation of an ester (esterification) is an endothermic reaction. Thus use of a high temperature will push the equilibrium to the right hand side, and a larger yield of the ester will be produced. To improve the yield of the Ester the reaction mixture could be refluxed for longer period of time so that more reactants are converted…
As the temperature increases, the rate of reaction increases until it has reached the optimum temperature above 37°C where the temperature is very high then the reaction rate will decrease. In the data table shown above, there is a similar pattern from increasing the temperature will increase the rate of reaction and as the temperature slowly increases to a certain point then the reaction rate will decrease. When the temperature increase above 37°C, then denature will occur. Also, the…
Let’s say that we have calculated effectiveness (assuming PD=0,8; PA=0,9; PI=0,6; PN=0,4) and it equals to 0,8 x 0,9 x 0,6 x 0,4 =0,1728. Remember, the conditional risk formula? Assuming again, that probability of attack and relative consequences both equal 1,0, conditional risk R= 1,0 x (1 – 0,1728) x 1,0 = 0,8272 ( or we can say that the risk equals 83% if rounded). Is it a lot? It depends on conversion table we will use to present numerical value as adjectival. And what it is mean? For…
1. In the last lesson we discussed homeostasis. Why is maintaining homeostasis important to enzymes? If homeostasis is not maintained, how can enzyme function be affected? Enzymes and many other organisms rely on homeostasis to complete their functions. Maintaining homeostasis is important because organisms adapt to fit their current environment, and if that environment does not stay constant the organisms might not be able to function due to their specialization. If the environment is in a…