Recent content by chmmr

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    Buy or make magnesium (local only)

    How was your presentation?
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    What affects the solubility of CaSO4 in different solvents?

    Say I've got a solid lump of CaSO4 that I put into water. When I first learned about Solubility Constants, Ksp was defined as [Ca][SO4], meaning how much Calcium and Sulfate ions dissolved. But now I found out when I look up a Ksp value it is [Ca][SO4]\gammaCa\gammaSO4. I understand the...
    • chmmr
    • Thread
    • Constants Product Solubility
    • Replies: 1
    • Forum: Chemistry
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    How can I turn off overtype when preparing a new thread?

    I think what she means by overtype is, when typing out a post, if you need to go back and make a correction to what you typed your correction eats away your typed text. For your information, I had the same problem and came looking here for an answer, then I realized that my problem had been...
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    What properties of a material make it a good insulator and opaque?

    Homework Statement This is a multi-part problem. Visible light spans a range of wavelength between 0.4-0.7 nm, corresponding to a photon energy between about 1.8 and 3.1 eV. (a) An old practical test says that if you can see through a piece of material, it is almost certainly a good...