# Tagged Questions

If your question is part of your high school or college/university homework, please use this tag. Do not use this as the only tag on a question. It signifies that instead of a direct answer, care should be taken to explaining the steps to the solution, preferably sticking to just giving helpful, ...

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### Why is 2-methyl-2,3-pentadiene achiral?

2-Methyl-2,3-pentadiene is achiral. Why? Centre of symmetry Plane of symmetry C2 axis of symmetry Centre and Plane of symmetry. I've drawn the structure: ...
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### calculations involving unit cell dimension [on hold]

copper crystal has a face centered cubic lattice structure.Its density is 8.93g/cm.what is the edge length of the unit cell?atomic mass of copper M=63.5g/mol
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### Chemical Kinetics Question with pressure [on hold]

This is the question ttp://i.stack.imgur.com/PXPLZ.jpg And here is the solution The problem is I am not sure if my answer is correct Can anyone help me in verifying it
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### Does the rate of ion movment in a salt bridge affect the total voltage produced by a voltaic (Galvanic) Cell?

I was thinking that different salts used in a salt bridge in a voltaic cell may have different rates of flow (perhaps ionic radius or some other property effects the rate?) I was wondering, if some ...
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### How many milliiters of 6.0 mol/L stock solution are needed to prepare : [on hold]

How many milliiters of 6.0 mol/L stock solution are needed to prepare : a) 0.50 L of 1.0 mol/L HCL?
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### How to derive Van't Hoff equation for Henry's constant

While studying about Henry's Law, I encountered this equation,I didn't know how to derive it so I searched about it and got nothing, I tried to substitute $H$ (Henry's const.) by $\gamma\cdot f_i$ ...
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### How does a lower pH change the alcohol concentration of wine?

I have been told it that when the pH of wine is lowered the alcohol concentration will decrease because of Le Chatelier's Principle. Which states; if a equilibrium is disturbed by changing the ...