The calculations completed for this experiment include determining the amount of Na2CO3 needed to do a full reaction. This was calculated through stoichiometry calculations: Molar mass was first calculated for CaCl2*2H2O Ca = 40.078g Cl2 = 35.453g*2 = 70.906g 2H2 = 1.00794g*4 = 4.03176g 2O = 15.9994g*2 = 31.9988g 40.078g + 70.906g + 4.03176g + 31.9988g = 147.01456g or 147.0 g CaCl2 1g CaCl2 * 2H2O x (1 mol CaCl2 *2H2O/147g CaCl2 *2H2O) = 0.0068 mol of CaCl2*2H2O Molar mass was then
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Purpose: In this experiment I will predict the amount of product produced in a precipitation reaction using stoichiometry by accurately measuring the reactants and products of the reaction. I will also determine the actual yield vs. the theoretical yield by calculating the percent yield. Materials: 1 Distilled water 1 Paper towels 1 Small paper cup 1 Coffee cup or mug 1 Beaker‚ 100 mL‚ glass 1 Funnel 1 Cylinder‚ 25 mL 1 Goggles-Safety 1 Scale-Digital-500g 1 Weighing boat‚ Plastic 1 CaCl2·2 H2O-Calcium
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DEFINITION OF THE TERM ‘VICTIM’. The word “victim” has its roots in many ancient languages that covered a great distance from northwestern Europe to the southern tip of Asia and yet had a similar linguistic pattern: victima in Latin; and‚ vinak ti in Sanskrit (Webster’s 1971). In the original meaning of the term‚ a victim was a man or animal put to death during a religious ceremony in order to appease some supernatural power or deity. Over centuries‚ the term has picked up additional meanings. Now
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Abstract. An innovative and novel technology method of processing called Turbo-Mixing Reactive Precipitation (TMRP) design proposed as an alternative to this current processing or conventional productions of finer precipitation calcium carbonate (nano-PCC) in turbo-mixing conditions. In this paper‚ the effect of the stirring rate onto morphology‚ particle sizes and reaction time of the precipitated CaCO3 particles was discussed. CaCO3 nano particles with an average particle size of approximately
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the information about the evolution of the concept of "victim" and the study of victimology. Victimology is a term first coined for a specialty within the field of criminology. In recent times‚ victimology has come to embrace a wide array of professional disciplines working with victims. In its original form‚ victimology examined characteristics of victims and how they "contributed" to their victimization. The emergence of the crime victims ’ rights movement has influenced the field of victimology
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The President’s Plan Leonardo Chacon Monroe College Professor John White March 4th‚ 2013 The President’s Plan The President is a head of the state‚ and he is responsible for representing the nation. His main task is to present the main political ideas and goals of the American people. According to the system of check and balances‚ the President of the United States needs to report on his agenda as well as the condition of the state. Every year‚ he delivers the State of the Union Address
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Disaster: British Petroleum Oil Spill Date: April 20‚ 2010 Location: Gulf of Mexico Personal Experiences: A little over a year after the BP oilrig sprung a leak‚ my family and I went to Panama City in Florida. As far as we could see‚ we couldn’t notice any differences in the Gulf of Mexico. The water was still crystal clear even though thousands of barrels of oil leaked into the ocean each day for months. I was completely aware of how the spill dramatically affected the lives‚ jobs‚ and
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Macbeth is made to believe that it is his destiny to become king. Despite his original disbelief‚ circumstances prove to persuade him to believe in the prophecies told by the three witches. In addition‚ Lady Macbeth acts as an effective instrument of evil in coaxing him to ’fulfill his destiny’. Once Lady Macbeth and the three witches convince him to kill the king‚ he is forced into a dark world of paranoia‚ deceit‚ guilt‚ fame‚ fortune and power of which he cannot possibly be expected to escape
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STo Report or Not to Report‚ That is the Question: a Case Study on Rape Victims Introduction Concerning philosophies of morality‚ rape is no doubt abhorred. However‚ what is debatable is whether or not it is one ’s duty to ensure that a rape is reported. In a particular case‚ one hotline operator finds herself in a dilemma that challenges her duties as a licensed social worker‚ with the obligation of ensuring that victims report their rape. As a part of the twenty-four-hour hotline staff at
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The Basis for Victim Compensation According to Victimology‚ victim compensation takes place when “the state‚ rather than the perpetrator‚ reimburses the victim for losses sustained at the hands of the criminal” cite. Advocates of victim compensation believe it’s the government’s obligation to compensate citizens who suffer harm‚ and they justify this view by using two distinct philosophical positions as a basis for their reasoning: The social contract and the notion of social welfare. The Social
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