Determining the Stoichiometry of Chemical Reactions Sample

Determining the Stoichiometry of Chemical Reactions Paper Mole ratios are used as conversion factors between products and reactants in many chemistry problems. The optimum ratio, which is the psychometric ratio in the equation, arm the greatest amount of product, and, if the reaction is exothermic, generate the most heat and maximum temperature change, Double replacement reactions are generally considered to be irreversible. The formation of an insoluble precipitate provides a driving force that makes the reaction proceed in one direction only. In a double reaction, the two reactants which are aqueous solutions (which can be broken down), can form two products one also an aqueous solution, and another which can be a precipitate, water, or a gas, which cannot be broken down, therefore making the reaction irreversible. The objective/goal of this laboratory is to find the optimum mole ratio for the formation of a precipitate in a double replacement reaction and use this information to predict the chemical formula of the precipitate. How can the products of a double reaction be predicted? Before the timer was started, each of the solutions in the test tube was stirred/ mixed with a large stirring rod. This ensured that both the reactants mixed properly. After stirring the solutions, observations were noted for any signs of chemical changes. The mixtures were to be left for 10 minutes (a timer was used) to sit undisturbed, because any movement of the test tube could cause a hindrance in the settlement of the precipitate. Though each test tube was left undisturbed for 10 minutes, final observations were made after the solutions were left to sit undisturbed for 24 hours. We will write a custom essay sample on Determining the Stoichiometry of Chemical Reactions specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Determining the Stoichiometry of Chemical Reactions specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Determining the Stoichiometry of Chemical Reactions specifically for you FOR ONLY $16.38 $13.9/page Hire Writer After the 24 hours of settling, the volume of the precipitate in each test tube was measured and recorded. For test tube with graduations, seeing the numbers at eye level made the calculations, but for test tubes with no graduations a different method was used to measure the volume of the precipitate. First another test tube of the same size was found, then using a pipette, Mil of water was measured in a ml graduated cylinder, and then poured into the similar size test tube. Using a black marker graduations were written on the test tube. Graduations up to ml only were made.

Team A Final Paper

Team A Final Paper Team A Final Paper Proposal Part 3 PRG/211 Proposal Part 3 I. Function and Structure of each Module When designing a program one of the first steps is figuring out what information would be required from the end user. Since we already know the calculations that would be needed to reach the end result, this task became simple for our project. We needed 7 input variables: Name, Age, Height, Weight, Gender, Calorie intake, and Activity level. As the program is broken down into different procedures it is easy to identify the different modules used by the program. The first module accepts multiple inputs from the user. Name and gender variables are declared as a string variable, allowing text input. The remaining input variables are declared as Float variables to accept a range of numeric responses for calculations later in the program. Other variables are introduced throughout the program that are hidden from the user to perform calculations. The flow of the program was easy to identify from the start of the project. Since we are calculating calorie intake versus calories burned, we kn ew some of the information would be required in order to perform any calculations. We decided to allow the user to input all the required information before performing any calculations, excluding the calculation of the Activity level. After receiving input from the user we first calculate the RMR (Resting Metabolic Rate). This is calculated differently depending on the gender of the user. For this we decided

The Hero's Journey - The Mythological Structure of Films Research Paper - 1

The Hero's Journey - The Mythological Structure of Films - Research Paper Example For purposes of clarity, the heroes journey will be herein defined to exhibit the following 12 traits: 1)the heroes are introduced in the ordinary world, 2) they receive the call to action or adventure, 3) they are reluctant at first or refuse the call, 4) they are encouraged by a mentor, 5) they cross the threshold and enter the â€Å"special world†, 6) the encounter a series of tests, allies and enemies 7) they approach the in-most cave and cross a second threshold, 8) within this second cave they endure the ordeal, 9) they take possession of their reward, 10) they are pursued on the road back to the ordinary world, 11)they cross the third threshold and experience a resurrection/transformation, 12) they return with the elixir or treasure to benefit the ordinary world (Vogler 2). In this way, Volger sets out to express that the way in which a screenwriter interacts with his chosen topic, works to force it into a reality, and hones the acumen of its message follows precisely t he same steps as that the heroes journey represents. What is particularly interesting about this â€Å"mythological† approach to any given subject matter is that it nearly perfectly applies to the way that almost every story can be told. The author begins by recounting how the â€Å"ordinary world† presents the known reality and easy confines within which the actor(s) will develop. In this way, the hero is presented as an entity that is uncomfortable and/or unaware of the underlying tension and struggle that brews beneath the surface. This develops the actor into the secondary stage or â€Å"call to adventure†. This call to adventure is the impetus and or need that is exhibited by the deficiencies of the â€Å"ordinary world†. As a result of this imperfection this â€Å"call to adventure† exists as a means to answer this inequality. An interesting component of this call to adventure/action is the fact that the protagonist/character/actor is oftentimes reticent to heed its direction. This