Kean Gerard Sumayo Experiment 1 APPLICATION OF STATISTICAL CONCEPTS IN THE DETERMINATION OF WEIGHT VARIATION IN SAMPLES I. OBJECTIVES 1. To determine the use of the different statistical concepts 2. To perform the proper applications of the statistical methods/ concepts on determining the weight variations of samples II. RESULTS and DISCUSSIONS A. Weight of Samples Ten 1-peso coins were used as samples for this experiment and were weighed carefully
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Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT This experiment was performed to learn the technique of acid-base titration and to compare the efficiency of commercially available antacids by looking at their weight of HCl and weight of antacid values. The analysis of antacid tablets was highlighted in this experiment. The efficiency of antacid tablets was determined and compared when the number of grams of HCl can be neutralized by 1 gram of the tablet was found. First‚ the two antacid tablets
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1. Which of the following is a basic principle that applies to both internal and external devices? A) when connecting a faster device to a slower port‚ the port adapts to the speed of the device B) if you have multiple devices to install‚ it’s best to install them at the same time C) for most installations‚ install the device first‚ then the device driver D) some devices don’t require a software component for them to work properly 2. What happens when a problem occurs while Windows 7 is installing
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hydrogen tartrate. (PL3) Calculate the theoretical solubility product‚ Ksp‚ of potassium hydrogen tartrate at 25C and at 100C. (PL4) Write a balanced equation showing the titration of potassium hydrogen tartrate solution with NaOH; Procedure : (1) Weigh out ~2.0g of finely powdered potassium hydrogen tartrate into 250.mL beaker. (2) Add 150.mL of distilled water and stir well. (3) Using a vacuum filtration‚ filter the solution into a clean‚ dry Erlenmeyer flask with a side arm. (4) Record
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Chromosomal and human inheritance 1. An AABb individual is mated with another AABb individual. The possible number of genetically different kinds of offspring is _____. a. 3 b. 2 c. 9 d. 4 e. 1 2. The most common phenotype in a natural population is referred to as the _____. a. Mutant phenotype b. Wild type c. Liked gene d. Autosome e. Genotype 3. The most common lethal genetic disease in the United States is _____. a. PKU b. Huntington’s disease c. Sickle-cell disease d. Hemophilia e. Cystic fibrosis
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Down Syndrome Down syndrome occurs when there is an extra copy of chromosome 21. People with this abnormality is described to be having a physical feature like excess skin at the nape of the neck‚ flattened nose‚ single crease in the palm of the hand‚ small ears‚ small mouth‚ upward slanting eyes‚ wide‚ short hands with short fingers‚ white spots on the colored part of the eye. The condition is often associated with some level of mental retardation or learning disabilities. These individuals are
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Experiment 1 Calorimetry Chem 17 Univerity of the Philippines Diliman Discussion All chemical reactions involve energy. By understanding the behavior and connection of energy flow within a chemical reaction‚ we can understand and manipulate them to our advantage. The most common form of energy observed during chemical reactions is heat. The reaction may absorb (endothermic) or release (exothermic) heat‚ depending on the reacting substances. Calorimetry is the process of measuring the heat flow
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EXPERIMENT 1 “HOW DO I LOVE THEE LET ME COUNT THE WAYS...” DETERMINATION OF AVOGADRO’S CONSTANT Techniques Calibration drop counting MSDS available for • • stearic acid‚ CH3(CH2)16COOH cyclohexane‚ C6H12 Principles molar volume molecular structures surface areas and volumes Avogadro’s constant percent error Recommended Advanced Reading Chapter 3 in Petrucci‚ Herring‚ Madura‚ & Bissonnette’s General Chemistry‚10th Ed. Avogadro Constant...1 INTRODUCTION
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the electrons as a back donation to the pi orbital in DMSO. In the first experiment‚ I had to synthesized CuCl2~2DMSO to determine which DMSO atom; Sulfur or Oxygen‚ combined to Copper (II) Chloride. I was able to determine it base on finding the melting point and observing the Infrared Spectroscopy. Since copper is a hard metal‚ it will most likely bond to an oxygen atom because they are both hard. In the second experiment‚ I also synthesized RuCl2~4DMSO to determine which DMSO atom; Sulfur or Oxygen
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Experiment 1: Mixtures Aim: To develop an understanding of different types of mixtures including solutions and to examine the different solubilities of some solutes in two solvents: water and ethanol Procedure: Refer to Experiments Book Pg 13 Results: Part A- Mixture Observations Classifications 1 100% Orange Juice There were suspended pulp in the juice Heterogeneous Mixture 2 100% Apple Juice Clear solution Homogeneous Mixture 3 Solder Uniform mixture Homogeneous Mixture 4 Fruit Cake Chunks
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