Recent content by JameB

What does "aqueous workup" mean? I'm taking a second year organic chemistry and it's a slightly advanced level but I didn't take the 1st year advanced level org.chem. so I may have missed a couple of common terms. What I don't understand is what does workup mean? At the end of some reaction...

I work for a drug company & they have a department of Metrology - "Metrology is the science of measurement. Metrology includes all theoretical and practical aspects of measurement." Anyways, so what exactly are the theoretical aspects of measurement? To me, they would be something like...

It does. What that person did was used the relevant equations and formulated an equation that related the wavelength to the maximum energy. Ekmax = (h×c/λ) - (e×Vs-E) Now plug in the data you know, and use two variables for the wavelength and solve for the ratio.

Fair enough, did you look at the third link on Google? The Yahoo Answer one?

Hint: What are the relevant equations and how would they differ for α/β particles?

http://lmgtfy.com/?q=Photons+of+energy+12+eV+are+incident+on+a+metal.+It+is+found+that+current+flows+from+the+metal+until+a+stopping+potential+of+8.0+V+is+applied.+If+the+wavelength+of+the+incident+photons+is+doubled%2C+what+is+the+maximum+kinetic+energy+of+the+ejected+electrons%3F

Your method is correct, I didn't check your math. You have a calculator for that! Good luck!

What happens to a compound like Na2CO3 in an aqueous solution? What happens when an acid and a base react? - If a solution contained a strong acid and a strong base (and vice versa) what would the resulting solution be? Acidic or basic? Answer those questions and think about it.

Thanks!

What does "pKa" mean? Just need to double check, pKa means -log(Ka) right? Or does it mean log(Ka)?

Ignore that whole question, I have a whole new question: if you have a galvanic cell set up like: Pt | 0.1M Fe3+, 0.1M Fe2+ || 0.1M AgNO3 | Ag What does it mean to write a balanced cell reaction equation and how do I do it? I know that the + electrode was Ag(s) so that means that the...

Homework Statement I'm doing report for a Thermochemistry lab and I need to calculate the molar enthalpy of formic acid, ΔH°2. Two reactions are taking place 1) H3O + OH <-> 2H2O with ΔH°1 = -58400J/mol and some q1 2) HCOOH + OH <-> H2O + HCOO and we need to calculate ΔH°2. I also know the...

Homework Statement Not exactly homework... "What are the uses of bacterial DNA replication in molecular biology?" The Attempt at a Solution Am I correct to say that 'the bacterial DNA replication process can be used to artificially create DNA that we desire and then use it for some...

nvm, I got the answer by reading more of my textbook :P

Homework Statement So I'm doing a lab report on the reaction of food dye with bleach. I have a couple of questions: 1) What's the difference between pseudo rate constant and rate constant?? (i.e. k' vs. k) 2) How do I write the rate law for this reaction? I graphed the data and found the...