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For the chapter 16 review, could you elaborate a little on numbers #16 and #17?

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Does anyone know how to do the challenge question from Friday??? I am completely lost on how to start it.

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Does anyone know how to do the challenge question from Friday??? I am completely lost on how to start it.

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I am having trouble solving to find the pH or pOH when only given a molarity of the solution. I Understand how to solve with K(aorb) and a concentration, but not just the concentration alone.

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Why is k for 1st order reactions only dependent on temperature and not reactant concentration?

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what is the best way to discern whether a reaction is elementary or not?

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Which order rates half lives are dependent on initial concentration of reactant?

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Do we need to work about knowing these for the test?

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Can you explain induced-dipole/induced-dipole forces? Thanks!

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Tips for HW4 (Kinetics) - Questions 7, 8, 13

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How do you calculate the half life if you are not given the k value?

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I am not understanding how to solve this problem, do you just divide by the new exponents?

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What exactly is the main difference between Energy and Enthalpy?

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Is the reason trans fat is bad for is that it is nonpolar with the OH bonds opposite one another while on the Cis fat both OH bonds are on the same side of the molecule. Is this why our bodies have difficulty with it, because it isn't water soluble?

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For one of the sapling questions, we are asked to describe the change in entropy and enthalpy when a gas in compressed.  The change of entropy is positive, but why is the change in enthalpy positive?

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Do the phases in a phase diagram always follow the same order (solid top left, liquid right, gas lower section)?

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What is the Sapling "Key Code"?

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You gave us an example of melting/boiling a salt. However, if we were to try to melt table salt it would burn before melting (probably). If this because table sale isn't pure, or is there some other reason the example avoids burning the salt before it is melted?

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Do we have to remember any equations from Chem I or will all the equations we need be given to us on the exam equation sheet?

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Can you use the Clausius-Clapeyron equation for the fusion curve as well? If so, does it work differently in the case of water or other such substances which have a fusion curve with a negative slope?

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I'm still confused on exactly what vapor pressure if. Also is beta (the constant in the equation today) unique for each molecule?

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In class Friday when you tossed liquid Nitrogen onto the table, I noticed a few small droplets "roll" off the table before dropping to the floor and turning into gas. Why is this? I understand why the droplets "rolled," ie from surface tension. But why didn't the liquid N2 instantly turn into gas on the table like it did when thrown onto the floor? Was the table at a colder temperature?

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So you’re telling me... that my laptop has molecules vaporizing from it? That’s so cool! Could you somehow speed up the process so that the laptop completely vaporizes into a gaseous substance?

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Where can the Chem 2 equation sheet be found?

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I'm still not quite understanding why the triple point has to be below the melting point. You said because nitrogen has normal melting and boiling points, and because its fusion curve slope is positive, but I don't see what those things have to do with it.

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Does being in a closed container affect vapor pressure?

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Why is it rare to find substances in liquid form in standard conditions? Does it have anything to do with the tendency for boiling curves to be negative sloped?

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If vapor pressure is related to the temperature, could we cool an environment as a method to take water vapor out of the air?

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If vapor pressure is related to the temperature, could we cool an environment as a method to take water vapor out of the air?

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Is an ion-dipole force basically an aqueous solution? Do the ionic and polar compounds vaporize and condense at the same rate or do the two substances behave independently of one another in that regard

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Do solids have vapor pressure?

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Is there a link to the equation sheet that we will get on the exams somewhere?

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When will there be a sapling?

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is there a pattern or rule for which substances have a triple point above 1atm, like how water happens to and it has a solid/liquid equilibrium line with a negative slope?

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is there a pattern or rule for which substances have a triple point above 1atm, like how water happens to and it has a solid/liquid equilibrium line with a negative slope?

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Do ionic compounds have LDFs?