Recent content by sumzup

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    Organic II Q's - EAS, sulfur as protecting group, fischer esterification

    Thanks, I thought that might be the case. That is the most fascinating organic chemistry thing I have learned in some time. Do you know what would happen if you just used oxygen groups instead of sulfur groups? Would the base added to create the carbanion end up reacting with the acetal...
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    Organic II Q's - EAS, sulfur as protecting group, fischer esterification

    My understanding is that for EAS, Friedel-Crafts Acylations/Alkylations will only work for halobenzenes or better (in terms of electron donating groups). Does this mean that F-C won't work for a halobenzene that also has a nitro group on it, due to the extreme withdrawing effects of the nitro...
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    Calculate pH of 1.00x10-8 M HClO4 Solution

    Since the concentration is extremely dilute and is < 1e-7, a phenomenon known as autoionization of water takes place...check out Example 3 under Strong Acids on http://www.science.uwaterloo.ca/~cchieh/cact/c123/stacids.html" for how to solve.
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    Preparing for the Oxford Physics Aptitude Test for High School Students

    You should really dig deeper into US Financial Aid. Harvard and other peer schools offer huge amount of money nowadays (along the lines of all expenses paid if family income is < $60, you have to pay 10% of family income for $60k-$100k, and then moderate increases after that up to $180k or so)...
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    Net Ionic Equation: 2HClO + Ca(OH)2 -> 2H2O + Ca(ClO)2

    (P.S. subscripts, not superscripts) Answer this question, and you should be able to get the net ionic equation. Which species have a transfer of electrons, and which ones remain the same after the reaction has proceeded to completion?
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    What Are the Main Types of Chemical Bonds and How Do They Form?

    All of the substances you named have ionic bonds (between ions), but the complex ions such as CO3, PO4, and NO3 have covalent bonds within themselves.
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