Recent content by cadillac

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    How Do Neutron Stars Create Pulsars?

    Oh, sorry. The question was: what is the radius of a satellite around the neutron star with and geosynchronous orbit. UPDATE: I've figured it out. All I had to do was use a different formula. Thanks for help though.
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    How Do Neutron Stars Create Pulsars?

    Homework Statement Mostly a bunch of extraneous information, so feel free to skim: Large stars can explode as they finish burning their nuclear fuel, causing a "supernova". The explosion blows away the outer layers of the star. According to Newton's third law, the forces that push the...
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    AP Chemistry Test FRQ: Balancing Equations

    Nevermind, I asked a friend of mine, and got it resolved... But if anyone has any tips for these unique reaction questions, I would really appreciate it!
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    Determining Spontaneity in the Reaction COCl2(g) -> CO(g)+Cl2(g)

    I think you'll need extra information, especially the enthalpy of formation for each species, or the entropy of formation. then you can find T
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    Finding pH given molarity and volume

    so sad... haha
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    Ksp vs Ka: What's the difference and how does it relate to precipitation?

    k is just a concentration constant, sp= solubility, a = acid. same concept, different setups, however. ksp only cares about the products. I'm guessing Ag+ precipitates first, because AgCl is insoluble. the rest are. (I'm not 100% sure, however.) But if we assumed they were all soluble...
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    Finding pH given molarity and volume

    I believe HNO3 is a strong acid- you can assume that dissociates completely. However, the other acid is NOT a strong acid--you will need Ka for that. BUT. I'm assuming since the Ka is very small, adding the H+ ions from that species will not change the # of H+ you get from HNO3 because of sig...
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    AP Chemistry Test FRQ: Balancing Equations

    I have no idea how to do the balanced equations portion of the FR. I know how to balance equations using stoichiometric coefficients, but not the particular type of "balanced equations" on the AP test. For example: "a small piece of sodium is placed in distilled water" my initial thinking...
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    AP Chemistry Test / Solubility Rules

    Thank you very much, lightarrow!
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    AP Chemistry Test / Solubility Rules

    I'm finding a lot of inconsistency with the solubility rules from different sources. especially when it comes to SO4(negative 2 charge). my teacher told me: soluble except when combined with Ca2+, Ba2+, Sr2+, Pb2+... however, other sources sometimes include Hg(II) 2+, and some Ag+, and...