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A.J.

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Posts posted by A.J.

  1. If you're going to do presentations (which you will be required to do many) powerpoint is a good thing to learn (takes about 5 minutes to learn). If you're going to do research, excel or some other data-tracking program might be a nice thing to know. But you'll likely be employing some undergraduate student to do your dirty work anyways.

     

    Otherwise you don't need to know anything. PDAs and Pocket PCs are becoming necessary to have, but not till your 3rd and 4th year. Not just for the pocket reference, but more and more hospitals are putting the patient data on the intranet for you to pull up on your palm instead of using a chart. I'm getting one this summer, I start my third year in August.

     

    oh i see. :)

  2. Thanks for the responses, everybody! I do write fast and clear. I have good communication skills. I do type fast.

     

    It's true that technology constantly changes. That's why you have to keep learning and be updated. You don't want to be left out, right?

     

    Off: My dad is an engineer and they have to know a specific software - Autocad. There are many versions of Autocad, because they change every year! :eek: Having knowledge of the old versions helps you to understand the new ones.

     

    I think every profession have a specific software to know about.

    For example, my dad knowing about Autocad and my bro learns about computers so he has to know about Turing or Java. So, I want to learn many programs. I'm a fast learner so I won't waste time.

     

    I was also told by another person to learn these things:

    Power Doc:

    "Word and powerpoint for sure and perhaps excell if you want to do analysis.

    So I would recommand to learn office.

     

    Word is important for writing articles

    Excell will help you if you want to practice statistical analysis

    Powerpoint is the main software for presentation (congress and alike)"

     

    The world is becoming dependent on technologies.

     

    I once read/heard this from an article:

    "In the near future, technology would be replacing people..." (something like that) :eek:

  3. Hi,

     

    Hopefully some of you are health doctors or some related to it or just someone who knows a lot about them.

     

    I just want to ask. What programs do I need to know If I'm going to these kinds of career? What are the softwares I need to learn?

     

    Examples: Microsoft Excel?, Word?, Office?, Autocad?, etc. etc.

     

    Any suggestions is greatly appreciated. I want to get the softwares now so that I would learn them during summer or in any breaks I have.

     

    ~AJ

  4. Thanks guys!! You are most correct in your ideas. I might choose chemistry or biology major but I will ask more people about this. Its funny that they don't care what you major in, and, as danzman said, they are interested about your skills/talent/etc. as a student. LOL. People who I asked said that Music majors students can also enter to the medical field, that is if they can pass the test, interviews, and the likes. I will keep checking this thread, other sites, and other sources as well. Thank you very much for your ideas/response! :cool:

  5. Hi! I've been asking people about the major that should be taken to pursue a career in Medicine - specifically, doctor in medicine (family doctor, or surgeon, etc.). My classmates tells me that I should take Kinesiology major since it is the easiest. It deals with the anatomy of the human body. Others say that I should take Biochemistry major, which is a lot harder than any other subjects (probably, the hardest major). So, the Biochemistry major, as I know, will help the student to prepare for the MCAT test.

     

    Recently, I was told by my mother that I shouldn't take the Kineosology major, as was adviced by her doctor. The reason is this major do not give a wide variety of careers. What she meant by that is there are very few job opportunities for the person who finished in this major. The doctor also told her that I wouldn't need to learn anatomies in University since it will be taught more broadly in medical school. So, I was thinking to take Chemistry major, under biological and pharmeceutical field. So, I could get into pharmacy as an alternative.

     

    I know some of you will say, "Take the major/course you are more comfortable with." or "The best course is the easiest course.". Please provide what you think/know. University will be difficult. I will do my best. :)

  6. You'll need more information than that to answer this question.

    Like the starting pH of what your disolving your salt into. Plus there are many molecules that can donate or accept more than one proton/ (electrons)

     

    But assuming you're disolving in a non-buffered solution of pH 7. And the molecule only accepts one proton (because it's obviously a base).

    Then what you suggest would work for an acid.. But since the pH has raised you will need to find the concentration of the base.

     

    You are most correct, Bluenoise. Thanks for your response. I got the correct steps, which lead me to the correct answer. As you said, we need to find the concentration of the base, which is correct and is one of the steps that I must solve, that is through using the given pH. And then, once the concentration of the base is found, it is a matter of dimensional analysis to solve this problem. The hint is to end up in an answer with units of 'grams per mol' since we are looking for the molecular weight. Thanks a lot for your response! I appreciate it. :cool:

  7. Hi, Can you help me on doing the steps to answer this problem?

     

    Given:

    Mass of Salt = 10 grams

    Total Volume = 1 litres

    --> the salt is dissolved into this volume to make a solution.

    pH of the Solution = 13.07

    --> salt is completely ionized in the solution.

     

    Required: Molecular Weight of the salt.

     

    Correct me: (given the mass; we need to find the number of mole)

    Step 1 - find concentration using the pH.

    pH = -log[A], where [A] is the concentration of the solution.

    Step 2 - find the number of moles is the solution.

    n (# of moles) = Volume (total volume) x Molarity (from step one)

    Step 3 - find the molecular weight by dividing the mass by the number of moles.

    MW (molecular weight) = mass divided by the # of moles.

  8. I was puzzled about one lecture of my University Professor about Inductive Effect. I used Google and typed "Science Forum" since I want to get the ideas of other people who can respond.

     

    I choose the first link which is a different site than this. I posted my ideas and questions but noone has answered it yet. So I went to another link and choose this one. By far, this is the best forum yet. :cool:

  9. 1. No. inductive effect will not decrease the O's electronegativity. It will only decrease the electron density on oxygen atom ,& will make it electron deficient. Oxygen will in turn attract the shared pair of electron b/w O_H to compensate its elctron deficiency.H will be easy to remove as H+.

    2. yes this bond weakened.because of less sharing of H for shared electron pair.

     

    Hey Aamera, thanks for your add-ups. I'm thankful that you have the same conclusion that I have. After Woelen gave me his ideas, I thought that I shouldn't say that the electronegativity is decreased but I should say that electron density is the one decreased instead. For number 2, you said the exact same thing that I was thinking. Now, I am even more confident. Thanks for the help, guys! I appreciate it! :D

  10. Hi, Can you help me with this?

     

    What is inductive effect? How does it works?

     

    These are my explanations:

    ".Inductive Effect."

     

    Using the example: CF3OH

     

    The lewis structure would be: (ignore the dots)

     

    ...F

    ...|

    F-C-O-H

    ...|

    ...F

     

    The Fluorine is more electronegative than C so it pulls the electron density towards itself. The inductive effect affects all parts in the chain. In this case, Carbon is more affected by the effect. Carbon will be electron deficient (so then it is more electronegative than its original Electronegativity). To compensate with this deficiency, this carbon pulls the electron density of the next part of the chain, which is O. As an effect, Oxygen pulls electron density from Hydrogen. This chain reaction is the inductive effect. The consequence of this effect is that the O-H bond weakens (can also be explained: the effect decreased O's EN). The O pulls the electrons in the O-H bond for itself causing a polarized bond. This is why this molecule is acidic, that it reacts readily. In acidic reaction, the the molecule will be broken and leaves an ion and the H+.

     

    Oxygen taking the electron pair from the Hydrogen so that Oxygen will have the partial negative charge and Hydrogen will have the partial positive charge since Oxygen is more electronegative than Hydrogen. By calculating the electronegative difference between Oxygen and Hydrogen we would consider their bond as a covalent bond:

    delta EN/(EN of A+ EN of B) = (3.5-2.1)/(3.5+2.1) = 0.25 <--closer to 0 so it's covalent bond.

     

    On the other hand, if we are to include O-H in the CF3OH, then we have

    to include the inductive effect. The inductive effect includes the weakening of individual parts of the chain as electron density is pulled away from them by the most Electronegative (fluorine, in this case).

    F takes from C which takes from O which takes from H. O initially has an increase in electron density when it takes electrons from H but it decreased when C takes the electron density from it. C was electron deficient and this is the reason why it took the electron density from O.

     

    Is my explanation correct? Pls. add more information if necessary.

     

    Some follow-up questions for clarification:

    (1) Did the inductive effect really decreased O's electronegativity? How?

    (2) Did the O-H bond weakened? (so that it becomes acidic?) How?

     

    Thank you very much for your help! I appreciate it! Very Happy

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