PreparED Study Materials
CHB 1021: Introductory Chemistry (CHEM 1021, Dr Plath)
School: University of Colorado
Number of Notes and Study Guides Available: 6
Notes
Study Guides
Videos
Chemical Combo: How N2 and F2 Produce Nitrogen Trifluoride Explained!
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Explore the chemical combination of nitrogen and fluorine to produce nitrogen trifluoride. Learn how to determine the limiting reactant and calculate the theoretical yield using stoichiometry principles.
Counting Oxygen Atoms in Various Molecular Sets
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Discover the simple yet essential method for counting the number of oxygen atoms in different molecular sets, including molecules and ions.
Predicting Precipitates: Al(NO?)? & NaOH Reaction Explained
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Unlock the secrets of precipitation reactions as we mix Aluminium nitrate and Sodium hydroxide. Discover how Al(NO?)? and NaOH interact forming the insoluble Aluminium hydroxide Al(OH)?. Break down the net ionic equation to highlight only the active participants.
From CH? to C?H?: Decoding Molecular Formula with Molar Mass
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Discover the process of determining a compound's molecular formula from its empirical formula and molar mass. Understand the calculations and reasoning behind deriving C?H? from the empirical formula CH? with a molar mass of 56.11 g/mol. Gain insight into fundamental chemistry concepts and computations.
Calculate a Building's Age Using Nickel-63 Decay
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The scenario involves an archaeologist analyzing iron in an old building containing nickel-63, which has a known half-life of 92 years. With only 0.78% of the original nickel-63 remaining, the goal is to estimate the year when this discovery was made. We delve into the calculations and principles of first-order decay reactions.