CHEMISTRY COMMUNITY

Crystal Ma

When we say that a cyclohexane is eclipsed, should we say all the carbon-carbon bonds are eclipsed, or Carbon-hydrogen bonds are eclipsed?

Crystal Ma

Thank you!!

Crystal Ma

What is the definition for perfect crystal? and what does professor mean by that there is no impurity and defect?

Also, According to the formula, $S=K_{B}LnW$ , should the entropy be 0 if W=1, even when the temperature is not 0 degree?

Crystal Ma

The reactant in the reaction that has the lower cell potential will give out electron in the whole electrochemical reaction (aka being oxidized), and become the anode.

Crystal Ma

Then how do we know the number of possible orientation?

Crystal Ma

It requires energy to turn water from a room temperature to 100 degrees (the boiling point), and it also requires energy to turn boiling water to steam. To convert one gram of water to steam requires 540 calories. Thus steam stores more energy than water, thus causes more damage.

Crystal Ma

I think I heard prof say Henderson-Hasselbalch Equation is a way to get the approximate pH. I didn't get why. Would anybody explain?

Also why the beginning of the pH curve of a strong acid-strong base titration flatter than a strong acid-weak base titration?

Thank you.

Crystal Ma

I'd say methane is a very weak acid because it is a proton donor but can be ionized at a low level.

Crystal Ma

From the book we know that removing a e- requires energy, so does it mean after the e- is moved, the energy of the atom(ion) will increase?

CHEMISTRY COMMUNITY

Search found 9 matches

Eclipse

Re: Useful Summary of Thermodynamic Definitions

Perfect Crystal

Re: Anode and Cathode

Re: Residual Entropy

Re: Steam Burns vs. Water Burns

Why is H-H Equation an approximation

Re: Methane classification

Energy Change When Losing a Electron