The known literature value of acid concentration does not fall within the range of uncertainty. For the first experiment, it can be seen that the percentage error is lesser than the percentage uncertainty. Therefore, the random errors predominate the experiment.…
Chemistry
Vapor Pressure and Enthalpy of Vaporization of Water Assignment
Vapor Pressure and Enthalpy of Vaporization of Water 1/9/12 Emily Toy Lab Partner: Zack Ronnei Instructor: Ms. Olsen, AP Chemistry Purpose: The purpose of this lab is to find the vapor pressure of water at temperatures between 50oC and 80oC.…
Thermochemistry: an Ice Calorimeter Determination of Reaction Enthalpy Assignment
Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy INTRODUCTION In CHM151 you learned about the first law of thermodynamics, the statement that energy may be transferred (as heat or work) between a system and the surroundings, but energy is neither…
Determination of the Enthalpy for Decomposition of Hydrogen Peroxide Assignment
Determination of the Enthalpy for Decomposition of Hydrogen Peroxide Objective: To construct a coffee cup calorimeter, measure its calorimeter constant, and determine the enthalpy of decomposition and formation of hydrogen peroxide. Background: This experiment is a classic thermodynamics lab. In…
Chemistry Ia Enthalpy Change of Neutralisation Assignment
To calculate the enthalpy change of neutrallzatlon of the given pairs of acid and base. Theory: When alkali neutralizes an acid, a salt and water are formed. Aqueous hydrogen ions, H+(aq) from the acid react with the hydroxide ions, OH-(aq)…
Enthalpy Change of Reaction Assignment
Determining an Enthalapy Change of Reaction Purpose of Experiment The purpose of this experiment is to determine the enthalapy change for the displacement reaction: Zn(s) + CuSO4(aq) Cu(s) + ZnSO4(aq) Hypothesis With this experiment I can also not make a…
Experiments and Error Analysis: Ideal Gas Law and the Molar Enthalpy of Vaporization Assignment
Discussion Section In the experiment the main concepts were the ideal gas law, the molar enthalpy of vaporization (, and the. Using the equation and the plotted graph we know that the slope is equal to , with the intercept…
Ibdp Chemistry Ia Enthalpy Change of Neutralisation Assignment
Aim: To calculate the enthalpy change of naturalization of the given pairs of acid and base. Theory: When alkali neutralizes an acid. A salt and water are formed. Aqueous hydrogen Ions, from the acid react with the hydroxide ions, OH-(as)…
Enthalpy Of Solution Lab Report Assessed Assignment
The procedure had a lot of weaknesses and limitations. To be able to see the limitations and weaknesses easier a list would be necessary. We used a Styrofoam cup with a hole in the lid. This has a lot of…
Enthalpy of Reactants Lab Report Assignment
Calorimeter is used because the knowledge f the amount of energy needed to produce a reaction is extremely useful to scientists studying chemistry. Coffee-cup calorimeter occurs inside of a Styrofoam cup. A known volume of water is poured into the…