Recent content by AMan24

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    Which is more stable: cyclobutane or cycloheptane?

    Homework Statement [/B] Which is more stable cyclobutane or cycloheptane? Homework Equations [/B] [(n-2)180)]/n = angle The Attempt at a Solution [/B] So the closer the angle is to 109.5 the more stable (except for cyclopentane vs cyclohexane). n = number of carbons [(7-2)180)]/7 = 128.57...
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    Hot metal lid on cool surface has resistance when pulled up

    I placed a hot metal lid on a cool surface. When i tried to pull it up, it had a lot of resistance, i had to really try to pull it up. I could hear sounds under the lid, I'm guessing it was boiling water. What do you think could have caused this resistance?
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    Difference between radial and centripetal acceleration?

    Homework Statement I'm not understanding the difference between them, this is for Uniform Circular Motion. Homework Equations ar = -ac = -v2/r The Attempt at a Solution So what i know is radial acceleration goes in a direction towards the radius (perpendicular to velocity), and tangential...
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    Does the Pythagorean Identity Hold for sin^2(3x) + cos^2(3x)?

    no there are no restrictions, so that must mean it does work, or actually, you said x = 3y. I am not sure... there's no restrictions I am aware of
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    Does the Pythagorean Identity Hold for sin^2(3x) + cos^2(3x)?

    Homework Statement sin2x + cos2x = 1 but would sin23x + cos23x = 1?Homework Equations none. The Attempt at a Solution [/B] I'm pretty sure sin23x + cos23x can't equal 1 otherwise the identity would probably be written as sin2cx + cos2cx = 1 and I've never seen it written like this. I was...
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    Trigonometric substitution, What am i doing wrong?

    Homework Statement Homework Equations The Attempt at a Solution Here is my answer, i get 1/24 For my first step i divided both terms under the radical by 4, then split 1/4 into (1/2)2, i saw something very similar in my book so i did the same thing, but i just realized this has to be...
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    SN1 Rxn: is hyrdride shift major product or the LG position?

    Homework Statement So LG is on 2° position, and you have a hydride shift. So you form one product on 2° and one product on 3°. Which product will be major which will be minor? Homework Equations none. The Attempt at a Solution I know hydride shift will be more major than a methide shift...
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    B Do all the peaks and valleys of f have f'=0

    I learned in the earlier chapters that peaks and valleys of a fxn have points where f'=0 (i marked them with red x). A few chapters later it said if a fxn has 2 roots, then f'=0 (still the 1st graph). So does that mean if the graph of a fxn is like the 2nd graph, the peaks and valleys are not...
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    Simple distillation of compounds with similar boiling points

    I just had a lab, and the results really aren't adding up to what i expected. And this is specifically about simple distillation, not fractional distillation. Lets say i have a solution of two liquids, one's boiling point is 90°C and the other is 110°C, a 20°C difference which is pretty close...
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    Chemistry How to calculate new IHD after finding a molecule in IR spec

    I think i might have figured it out. So for ketones and aldehydes, its just CO. For carboxylic acids and esters its CO2. For amides its CON.. and so on
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    Chemistry How to calculate new IHD after finding a molecule in IR spec

    Isn't that was ketone is? A CO and a CH3 = C2H3O
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    Chemistry How to calculate new IHD after finding a molecule in IR spec

    Homework Statement Lets say i have C5H10O.. The IHD is (5x2+2-10)/2 = 1 IHD So now i use my IR chart and i determine i have ketone Now i want to find the new IHD and also figure out what other atoms i have left. So i need to subtract C5H10O by ketone and figure out the new IHD. Homework...
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    Around how much do hot plate heat knobs increase per number?

    I'm not sure, i got it from the website. I'm assuming its the plate but i have no idea. And yeah the temperature would be different depending on the amount of what I am heating, but I'm asking this for smaller amount substances, i should have specified that.
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    Around how much do hot plate heat knobs increase per number?

    In my labs we use hot plates with a 0-10 temperature knob. The hot plates don't have a temperature monitor, so i have no idea how hot each number can increase it or how hot it is at the time. Sometimes i have labs where i have to heat something to more specific temperatures or else the reaction...
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