PR OCEDURE Before beginning‚ set up a data table similar to the Data Table: Experiment Results in the Lab Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium
Premium Stoichiometry Sodium chloride Calcium
Institute Physics Course 2014 - Rocket Lab Report Title: RockSim and Electronic Altimeter Measurement Techniques Name: Scarlet Henriquez Email: scarletpatricia94@aol.com LAB SESSION ___8____Assignment _____7_____ Due Date: ___7/8/14______ Objective: Launch a smaller rocket to learn how to compare RockSim predictions (computer based) to an actual instrument measurement carried by the rocket (Electronic Altimeter). This Lab shows how better the electronic measurement
Premium Rocket Mathematics Flight
original state and the percent of the hydrate recovered was calculated by using the mass of the rehydrated sample by the mass of the original hydrate and then multiplied by 100%. Data Presentation & Analysis Table 1: The data was collected from the lab experiment. Sample calculations are shown. Mass of beaker with sample 30.765g Mass of empty beaker 30.263g Mass of sample .502g Mass of beaker with sample after 1st heat 30.661g Mass of beaker with sample after 2nd heat 30.657g Heating mass
Premium Mathematics Mole Heat
H2O (l) (x-1) ∆H=-4.09 kJ/mol (x-1) -54.0+4.09=-49.9 NH3+ + H+ → NH4+ =- 49.9 kJ /mol (-49.9- -26.2)/-49.9 x 100 =47.3% Lab Questions: Pre: 1. The change in thermal content in a reaction 2. The amount of energy needed to change one gram of a substance 1 degree C 3. (50 mL)(1.02 g/mL)(4.18 J/g C)(25.3-21.4) = 830 J 4. 830J+8.20J/g C(25.3-21.4)= 860J 5. .25L(.6mol/1L)+.25L(.L/1mol)= 0.3mol AB 830J/.3mol(1kJ/1000J)= 2.7 kj/mol Post 1. Calorimetry is the measure of heat flow. Heat
Premium Temperature Chemical reaction Celsius
Centralia No. 5 PAD 500- Modern Public Administration April 23‚2014 On March 25‚ 1947‚ a deadly coal mine explosion rocked the calm‚ peaceful town of Centralia‚ IL. During World War II‚ this mine provided coal to the war effort. A charge ignited built up coal dust and caused the explosion. This explosion should have surprised no one. Many public sector safety professionals from state and federal agencies knew of the hazards as a result of inspections‚ union complaints and
Premium Coal mining Coal Mining accident
Lab: Cellular Respiration in Yeast Lab Report Form Your Name: Katlin Moore “What do you think? – What do you know?” Questions: In this lab‚ we will investigate the effect of sucrose concentration on the rate of cellular respiration in yeast. Under specific conditions‚ yeast will convert sucrose into glucose and then use this glucose in cellular respiration. Yeasts have been used by humans in the development of civilization for millennia. What is yeast? How have humans used yeasts?
Premium Carbon dioxide Cellular respiration Oxygen
February 25‚ 2013 Lab: Equilibrium of Forces Purpose/Objective: The objective of this lab was to test the first condition of equilibrium for a set of concurrent coplanar forces‚ prove Lami’s Theorem‚ and to determine an unknown mass using rules of equilibrium. Procedure: In the lab‚ we wanted to find at what angles three separate weights would create a net zero force on a force table so that the ring holding the weights was exactly centered in the middle
Free Force Mass General relativity
Best English 099 10/7/13 IPhone 5 In today’s world‚ technology is constantly changing from a new paperclip to an improvement in hospital machinery. Technology lets people improve the way they live so they can gain their own personal energy. Every year it seems like apple comes out with a bigger and better iPhone‚ like the iPhone 5. It is forcing people to be “in with the new and out with the old.” People from all over the world; are saying that the iPhone 5 is a “must have.” Personally I’m in
Premium Mobile phone Internet
Michael Castelli Keegan Bauman Potato Lab Dr. Peano Block 1 Introduction: Potatoes are just your average food; they have been around for as long as the human race can remember. In this lab we will make them be a prime example of osmosis‚ which is a transport mechanism. In this lab the problem being tested was what environment affects the mass of the potatoes the most. The independent variable is the environments used salt‚ water and iodine solution. The dependent variable is the mass of
Premium Water Potato Environment
According to Barbour and Wright‚ Congress Quiz 5 1. According to Barbour and Wright‚ Congress A. is rarely able to override a presidential veto. B. overrides a presidential veto about half of the time. C. overrides a majority of presidential vetoes. D. has not overridden a veto in the past fifteen years. E. does not override presidential vetoes because Congress members do not feel it is worth their time. 2. Barbour and Wright contend that the president’s public approval rating tends to be affected
Premium President of the United States United States Congress