CHEM 405: Science Communication

School: Catholic University of America

Number of Notes and Study Guides Available: 0

Videos

Iron Bar: Mass Change and Rust Formation

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Learn about mass changes in an iron bar when exposed to moist air, including the formation of rust (Fe?O?) and how to calculate the final mass.

Validating & Correcting Chemical Equations: Ba(NO?)? to LiCl Reactions

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Dive into the accuracy of four chemical reactions involving compounds like Barium Nitrate and Lithium Chloride. Discover which reactions yield precipitates which are correct and which need correction. A comprehensive review from Barium Sulfate formation to Lead Chloride precipitation

Moles of H in Samples: H?O, NH?, N?H?, C??H??

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Discover how to calculate the number of moles of hydrogen in different chemical samples, including H?O, NH?, N?H?, and C??H??.

Intermolecular Forces: Comparing Properties of Key Chemical Compounds

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Discover the effects of intermolecular forces on the boiling point, freezing point, and vapor pressure of various compounds. Learn how hydrogen bonding, ionic bonding, and London dispersion forces influence these properties in different groups of molecules.

Constitution of Compounds: CH4O, CH3Cl, C2H6, CH5N, C2F6, C2H5Br, C3H8

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Unraveling Molecular Structures: Explore the composition of compounds with molecular formulas CH4O, CH3Cl, C2H6, CH5N, C2F6, C2H5Br, and C3H8. Learn about their unique structures and properties.

Calculating Water's Final Temp after a 345 kJ Heat Boost

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Discover how to determine the final temperature of a water sample after heat absorption. Utilizing the concept of specific heat capacity and the formula q = mc?T, we calculate the change in temperature and reveal its new state. Experience the transformation from an initial tepid state to a drastically altered thermal condition.