Yield

Purpose: The purpose of this lab is to establish a concrete understanding of limiting reagents and percent yields. In addition, the lab should give the administrator the ability to analyze the effects of reactants on the product of a chemical reaction. Procedure: In part A of the lab, the first step in the procedure is to add 20 mL, and 25 mL of CaCl2 to two different flasks. Following this, the administrator is to add 10 mL of Na2CO3 to the flask containing 20 mL of CaCl2, and 5 mL of the…

cinnamate, cinnamic acid, and glucose. The purity of glucose and ethyl cinnamate was measured through IR Spectroscopy. Melting point was used to determine the purity for cinnamic acid. Using the final amount for each ingredient, we determined the percent yields, which were 64.7% for glucose, 56.2% for cinnamic acid, and 38.8% for ethyl cinnamate. The melting point of cinnamic acid, tested twice, was consistent with the melting point of pure cinnamic acid. The glucose corresponded to the…

to purify the said crude product due to the instructions given to them by their instructor. Therefore, the main objective of the experiment was observed, while the purification of the crude esters through simple distillation was not. The yield at the end of the experiment was not 100% percent due to certain factors in the natural process of synthesis and the technical failures within the experiment. Because of this, future researchers are advised to add smaller amounts of NaHCO3 to…

There is no denying heroin has infiltrated all areas of the country and all levels of society and that its emergence is traced back to misuse and abuse of prescription painkillers. As this research has noted, narcotic painkillers are similar to heroin, both are opioids, and they act in similar ways in the brain, producing the same kind of euphoria and lead to the same devastating addiction. Consequently, drug dealers provided heroin as the cheaper alternative for prescription opioid addicts…

coffee — shade cultivation and sun cultivation, and two types of coffee grown commercially— robusta and higher quality arabica. Coffee was previously shade-grown, but now ‘sun cultivation’ is becoming more popular and widely used as it produces higher yields faster than shade cultivation. Producing coffee requires deforestation and land clearing. When growing coffee through ‘shade-cultivation’, some trees and other plants could be left to provide shade for the coffee plantations, which is less…

Genetically Modified Foods In North America, 80% of the foods people eat contain GMOs. GMOs or Genetically Modified Foods are organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering, or GE. Many known food like snack bars or crackers contain GMOs. Scientists around the world debate whether GMOs are suitable or harmful to humankind. Each of them have their own reasons for the pro/con of GMOs. GMOs cause many health problems to humans and…

The world's population is estimated to reach nine billion by 2050 with more food and agricultural water needed to feed the growing population. In addition to change in food and water demand, climate change and change in biofuel demand represent major risks for long-term food security. As the pressure on land and water resources intensifies, managing the available resources and feeding the growing world population seems challenging and has to be addressed. My life goal is to become an expert in…

Another study showed that for every doubling of the SCC, yield decreases by 1.5 lbs. While production decrease is one of the most common effects associated with mastitis, it is surprising that this pattern was found to start at an SCC as low as 12, 500 (Fox, 2013). In addition, there was no difference in the findings…

company because the investors are taking the risk. The investors buying the bonds have a sense of comfort knowing they will get a steady income until the fulfilment of the bond. Bonds with the most length tends to pay the most yield. For example a 5 year bond pays a lower yield to a 10 year bond. Investors can purchase bonds from the company directly or from a secondary market in which they can benefit from purchasing a bond below face value offering the investor an instant profit (Bontekoe,…

process called genetic engineering, also known as genetic modification. During this laboratory process, the DNA of one species is removed and then added to the genetic makeup of another species (Smith, GMO Education). GMOs can supposedly increase yield, produce herbicide/insecticide tolerant crops, and in some instances they have benefited third world countries. Though GMOs have some positive effects, the use of GMOs comes at a greater price. GMOs still rightfully remain to be questioned for…