Exam 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Mole ratios | T: ratio of moles or reactants and products in every balanced chm eq.
B: Conversion factors based on balanced chemical equations.
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| Stoichiometry | Using a chemical equation to calculate the relative masses of the reactants and products of a reaction.
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| Limiting reactant | Reactant that limits the amount of products that can be formed.
It's used first in a chm reaction.
Ex. once methane is consumed no more products can be made.
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| Theoretical yield | B: Amount of product predicted for the amounts of the reactants used.
T: Calculated from a limiting reactant problem.
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| Percent yield | Amount of the actual yield compared to the theoretical yield.
Actual yield / theoretical yield x 100%
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| Stoichiometry calculations | calculations based on balanced chemical reactions to predict the cost of processes.
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| Law of conservation of mass | Mass is neither created nor destroyed during a chemical reaction
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| Alloy | Mixture of elements. Ex. Steel (has iron + other elements)
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| Mass- mass stoichiometry problem | Used to convert the mass of a reactant or product to an unknown mass of reactant or product.
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| Actual yield | Amount of product collected from an experiment.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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