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Equilibrium : CalcKp (2 Variations)
In one experiment chemists studied the formation of phosgene, COCl_{2}, by mixing {y} atm of carbon monoxide and {z} atm of Cl_{2} in a reaction vessel at 700K. After the system reached equilibrium, the total pressure was {x} atm. Calculate Kp for the reaction.

Hint: Remember that the total pressure is the sum of all the partial pressures.

Note:
Do Not use scientific notation
DO NOT use spaces
DO NOT write in the units.
Be sure to write your answer with only one decimal place even if this is not the correct number of significant figures.

Equilibrium |

Chemometrics

Equilibrium : CalcKc (4 Variations)
A container initially has {y} M ammonia at a certain temperature. When the system reaches equilibrium the concentration of ammonia is {x} M. Calculate K_{c} for the following reaction as written.

Note:
Answers must be written using scientific notation with "e"
DO NOT use spaces
DO NOT write in the units.
Be sure to use three significant figures.
eg: 2.44e-5

The Penny Experiment Revisited: An Illustration of Significant Figures, Accuracy, Precision, and Data AnalysisJoseph Bularzik In this general chemistry laboratory the densities of pennies are measured by weighing them and using two different methods to measure their volumes. The average and standard deviation calculated for the resulting densities demonstrate that one measurement method is more accurate while the other is more precise. Bularzik, Joseph. J. Chem. Educ.2007, 84, 1456.

Chemometrics |

Nomenclature / Units / Symbols |

Nonmajor Courses |

Physical Properties

Using a Graphing Calculator To Determine a First-Order Rate Constant: Author ReplyJosé E. Cortés-Figueroa When technology is used to help with mathematical calculations, the emphasis must be on the concepts being learned rather than simply the procedures. In our approach we are attempting to help students learn more about the concept and also to attain data analysis skills they will need in the future. Cortés-Figueroa, José E. J. Chem. Educ.2004, 81, 485.

Kinetics |

Chemometrics

Using a Graphing Calculator To Determine a First-Order Rate ConstantTodd P. Silverstein The authors use the graphing calculator to estimate the infinity reading from linearized kinetics data, and then they use linearized semi-log data to determine the first-order rate constant. Silverstein, Todd P. J. Chem. Educ.2004, 81, 485.

Handling Large and Small NumbersEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.