General Chemistry II Determining of the equilibrium constant for the formation of FeSCN2+ Introduction The objective of this experiment was to determine the equilibrium concentration and then determine Kc. A dilution calculation was formed to determine the concentration of SCN- and Fe(SCN)2+. Each cuvette was filled to the same volume and can be seen in table 1. Then the absorbances were recorded from each cuvette and can be seen in table 1. A Beer’s law plot was made from the data that was recorded
Premium Chemical equilibrium Chemistry
data recorded. This was concluded to be 0.25 M–most similar to Solution #1. Concentration‚ measured in molarity (M)‚ can be calculated using the equation: M = mol L. The absorbance measures the amount of light that passes through the solutions‚ determining the amount of solute dissolved within the solution. The experimentation results are the following: Solution #1 has a concentration of 0.25 M and absorbance of 1.963‚ Solution #2 has a concentration of 0.15 M and absorbance of 1.203‚ Solution #3
Premium
Determining the Molar Mass of a Volatile Liquid Purpose: The purpose of this lab was to find the molar mass of a volatile liquid. Data Table: Mass of Test Tube and Stopper (g) | 10.864 g | Barometric Pressure (mmHg) | 749.31 mmHg | Temperature of Boiling Water (C) | 97.1 C | Mass of Test Tube‚ Stopper‚ and Condensed Liquid (g) | 10.890 g | Volume of Flask (mL) | 9.90 mL | Calculations: 749.31 mmHG*1 atm760 mmHg= .98593 atm 9.90 mL*1 L1000 mL= .00990 L 97.1 C+273=370.1 K Substituting
Premium Atmospheric pressure Water Gas
Checkpoint: Determining Levels of Prevention Heather Merz HSM/210 4/14/2010 Angela Hall Scenario 1: The level of prevention Tertiary prevention. I feel this way because you cannot prevent what has already happened you just have to rehabilitate this person. And hope they learn to not deal with the abuse the lady used the panic which prevented the man from hurting the lady and he went to jail. I would have done things A little differently I would have told her that she needs
Premium Psychology English-language films Drug addiction
Determining risk factors‚ consequences‚ and protective measures of Body Dissatisfaction and Eating Disorders Determining risk factors‚ consequences‚ and protective measures of Body Dissatisfaction and Eating Disorders Body image is an individual’s perception of his or her own body in terms of sexual attractiveness. Human society has emphasized on beauty of the human body for a long time. However‚ an individual’s perception of their own body may differ from society’s standards‚ thus
Premium Eating disorders Nutrition Body image
Determining the Number of Water Molecules in a Hydrate Results Mass of empty beaker 55.11 g Mass of beaker with hydrated copper (II) sulfate 58.13 g Mass of hydrated copper (II) sulfate 3.02 g Mass of beaker with dehydrated copper (II) sulfate (last weighing) 57.22 g Mass of dehydrated copper (II) sulfate 2.18 g Mass of dehydrated copper (II) sulfate (2nd weighing) 2.11 g Questions 1. Calculate the value of “n”. Show your work. Include an example of ALL calculations involving
Premium Water Molecule Mole
Chemistry Practical Report: Topic: Determining the Empirical Formula of Magnesium Oxide Patrick Doan 11 CHEM 11 26/9/08 Table of contents 1.0 Aim 1 2.0 Theory 2-3 3.0 Materials 4 4.0 Method 4 5.0 Results 4 - 5.1 Qualitative Observations 4 - 5.2 Example Calculations for each Calculated Value 5-7 -5.21 Experimental Values and Associated Errors 5-7 - 5.3 Accumulated Raw Data 8 - 5.4 Mean Experimental
Premium Atom Chemistry Chemical reaction
Determining Training Needs at Summit Credit Union In 2008‚ Summit Credit Union experienced a merger which doubled the size of the company and made it necessary to build a new corporate culture. They want to improve credit members’ financial lives. The company has shifted away from off-the-shelf training and developed online and face-to face- programs. “These programs are customized to employee needs and the company’s goals and initiatives.” (Noe pg.147) The learning function is a key role while
Premium Human resource management
Austin Dunn January 13‚ 2013 Determining the Concentrations of Red Dye in Sodas Abstract The use of red dye #40 is common in various soft drinks today. The labels on these beverages do not specify how much dye we are consuming. We did this experiment to find out which soda uses the most dye. Using a spectrophotometer‚ we measured how much light is absorbed by various known concentrations of red dye. After collecting this data‚ a standard curve was made that correlated the concentration of red
Premium Soft drink Drink Concentration
CHM 266‚ Section 55 Shanel Warren Tiffany‚ Princess‚ and Wei October 2‚ 2013 Determining the Mole Ratios in a Chemical Reaction Introduction The purpose of this lab was to determine the mole ratios of the reactants hypochlorite ion (OCI ) and thiosulfate (S O ) when reacted in a chemical reaction. A chemical equation gives the mole ratios of the reactants and products involved in the chemical reaction. When some formulas of the products are not known‚ experimental measurements
Premium Chemical reaction Sodium Chemistry