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Read the Fine Print
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(Complete Item Description)
- Abstract:
How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH. Can a weak acid solution have the same pH as a strong acid solution?
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
-
PhET Interactive Simulations
Remix and Share
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(Complete Item Description)
- Abstract:
Submitted as part of the California Learning Resource Network (CLRN) Phase 3 Digital Textbook Initiative (CA DTI3), CK-12 Foundation’s Chemistry - Second Edition FlexBook covers the full course of chemistry topics taught in high school. This digital textbook was reviewed for its alignment with California content standards. The 25 chapters cover measurement in chemistry, matter and energy, the atomic theory, Bohr model of the atom, chemical periodicity, behavior of gases, acid and bases, stoichometry, covalent bonds and formulas, electron configuration of atoms.
- Subject:
- Science and Technology
- Grade Level:
- Secondary
- Collection:
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CK-12 FlexBook
Read the Fine Print
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(Complete Item Description)
- Abstract:
Inorganic chemistry is a division of chemistry that studies metals, their compounds, and their reactivity. Metal atoms can be bound to other metal atoms in alloys or metal clusters, to nonmetal elements in crystalline rocks, or to small organic molecules, such as a cyclopentadienyl anion in ferrocene. These metal atoms can also be part of large biological molecules, as in the case of iron in hemoglobin (oxygen-carrier protein in the blood). Upon successful completion of this course, students will be able to: Describe nuclear charge and calculate effective nuclear charge in terms of Slater's rules; Demonstrate an understanding of trends in the periodic table; Describe the bonding between atoms in terms of valence bond theory; Describe inorganic structures by using valence shell electron pair repulsion theory; Identify the nomenclature rules of coordination compounds; Demonstrate an understanding of crystal structures, lattice energies, and different types of unit cells; Explain the electronic structure of solids, the concept of band gap energy, and how this band gap determines the electronic properties (insulator, conductor, and semiconductor) of solid materials; Describe general trends in the reactivity of elements within Groups I through VII. (Chemistry 107)
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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Saylor Foundation
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(Complete Item Description)
- Abstract:
This unit helps you understand the properties of nucleotides and how they contribute to secondary and tertiary structures of nucleic acids at the molecular level. You will learn about the different composition and roles of nucleic acids in the cell, their interactions with each other and the use of ribozymes, aptamers, antisense and hybridization as tools in molecular research. The unit covers the function of DNA packaging within the cell, the interactions between the DNA double helix and the nucleosome and it helps you understand the various chromatin states within the interphase nucleus.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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Open University OpenLearn
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(Complete Item Description)
- Abstract:
An intensive survey of structure, reactions and synthesis of the main classes of organic compounds. Laboratory illustrates the preparation, purification and identification of organic compounds by classical and instrumental methods.
- Subject:
- Science and Technology
- Grade Level:
- Post-secondary
- Collection:
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UMass Boston OpenCourseWare
No Strings Attached
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(Complete Item Description)
- Abstract:
This lesson plan will extend the inquiry started in the ToxMystery activities by introducing students to the world of acidity and alkalinity in household products.
- Subject:
- Science and Technology
- Grade Level:
- Primary
- Collection:
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National Library of Medicine
No Strings Attached
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(Complete Item Description)
- Abstract:
Vinegar is an acid. An acid has a pH less than 7. When baking soda is added to vinegar, bubbles are produced and gas is released. Fizzing, bubbling, and change in smell are all evidence of a chemical reaction. The amount of gas produced using baking soda as an indicator tells you the relative concentration of the acid.
- Subject:
- Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
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Video and Image Data Access
Read the Fine Print
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(Complete Item Description)
- Abstract:
Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
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PhET Interactive Simulations
