Recent content by yolo123

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    Acidity of compounds with oxygen-Nucleophility

    I don't understand why Chris K's answer is wrong. CH3COOH can hardly take another proton to become CH3CO2H2. As you said, it is acidic. Now, how am I supposed to know CH3COOH is a better nucleophile than CH3OH? Is it by rough memorization? Or is it a debated subject?
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    Acidity of compounds with oxygen-Nucleophility

    Hi Teemo. So, are you saying the book's answer is right? Look at this link https://answers.yahoo.com/question/index?qid=20111118133759AA8lpUH
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    Reading pH: Is There A More Precise Way to Measure Volume?

    For b), do I really need to look at the graph to get the volume of HCl poured? Is there not a more precise way?
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    Calculating Yield and Concentrations in a Precipitation Reaction

    I agree. Bad formulation. And even their answer does not make sense since they ask for 0.225g dissociation.
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    H3PO4 Titration Problem: Determining Molar Concentration and Indicator Choice

    http://www.occc.edu/clvahlberg/documents/chem1215/Unit%204%20-%20Equilibria/phosphorc%20acid%20eq%20points.pdf These guys did it similarly to me. Are they wrong?
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    H3PO4 Titration Problem: Determining Molar Concentration and Indicator Choice

    I read the article you linked. But, we never saw those kinds of formulas in class! What would I do to get that 4.70?
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    H3PO4 Titration Problem: Determining Molar Concentration and Indicator Choice

    Is the definition of equivalence point not: moles of titrant=moles of analyte? If so, then all H3PO4 becomes H2PO4- which will now act as an acid.
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    What Is the pH of a Buffer System with H2PO4- and HPO42-?

    Yes, I looked at it from the point of view of the values of the Ka/b values. Does it seem to make sense? Sorry about my handwriting. This is actually my third "clean" version I made just for the forum.
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    The Acidity of the Hydrated Ferric Ion

    My general chemistry teacher emphasized on the induction effect. My chemistry level is unfortunately not high enough to go any further.
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    H3PO4 Titration Problem: Determining Molar Concentration and Indicator Choice

    Hello Forum, Another problem again... Please bare with me. You are titrating an H3PO4 solution of acid. You titrate 20ml of that solution. You have used 15 ml of 0.500 M NaOH at the equivalence point. What is the molar concentration of the acid? Would bromophenol blue (pH 3.0-4.6) be...
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    What Is the pH of a Buffer System with H2PO4- and HPO42-?

    Hello Forum! 1g of H2PO4- and 1 g of HPO42- are put together into 100 ml of H2O. What is the pH of the buffer created. Ka1= 7.5x10^-3 Ka2=6.2x10^-8 Ka3=4.8x10^-13 ______________________ Okay. I uploaded my solutions. (Please disregard the part 1.184 g/mol and the 34% on my answers...
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    Rate law expression with solids and liquids

    I meant k as in the rate law: for example, rate=k[NO2]^2.
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    Rate law expression with solids and liquids

    Hello Forum! I was wondering: In the rate law expressions, I could never find an example with a solid or a liquid in the reactants in my textbook (Chemistry by Zumdahl). I searched Chemistry (Raymond Chang) and Principles of Molecular Chemistry, without any success. What happens to...
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    Is There Missing Information in the Ksp Equilibria AgCl Data?

    Yellowflash: I tried it, but it gave me B) as an answer (2.58 g more precisely). I'm not sure I did all the steps correctly though.
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    Is There Missing Information in the Ksp Equilibria AgCl Data?

    Please look at attached picture. So, I tried solving it. Apparently, the answer is C. But, I think there is missing information (ie the volume of the initial solution). Care to back me up on this?