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Percent Yield definitions

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  • Stoichiometry
    A calculation method used to predict the amount of product possible from a given amount of starting material in a chemical reaction.
  • Percent Yield
    A measure of reaction efficiency, calculated by comparing the actual product obtained to the maximum possible amount, expressed as a percentage.
  • Actual Yield
    The pure amount of product collected from a laboratory experiment, often less than the calculated maximum due to real-world losses.
  • Theoretical Yield
    The maximum amount of product expected from a reaction, determined by stoichiometric calculations using starting quantities.
  • Efficiency
    A reflection of how closely the experimental results match the calculated maximum, often indicated by percent yield.
  • Chemical Reaction
    A process in which substances interact to form new products, with efficiency measured by comparing actual and theoretical yields.
  • Formula Sheet
    A reference resource that may or may not provide essential equations, such as the percent yield formula, during exams.
  • Units
    Standardized quantities, such as grams or moles, that must match when calculating percent yield to ensure accuracy.
  • Product
    The substance formed as a result of a chemical reaction, whose amount is measured to assess reaction success.
  • Spillage
    A common laboratory occurrence where some material is lost, contributing to lower actual yields compared to theoretical predictions.
  • External Influences
    Uncontrolled factors, such as environmental conditions, that can reduce the amount of product obtained in an experiment.
  • Percent Yield Formula
    An equation requiring the ratio of actual to theoretical yield, multiplied by 100, to determine reaction efficiency.
  • Yield Categories
    Classifications such as excellent, very good, good, and poor, used to describe the quality of a reaction's percent yield.