Recent content by killinchy

The triple bond between the two nitrogen atoms in N2 is the second strongest covalent bond there is. The C-O bond in carbon monoxide is slightly stronger. Nitrogen is a very stable compound. Around about the end of the 19th century, there was concern that, by the 1920s, widespread starvation...

I prefer 'Avogadro's Constant (Na) = 6.022E23/mol the "mole" is not defined as a number; it is defined as an 'amount of substance' (symbol, n) and 1 mol of anything is the amount of that thing that has 6E22 entities. Somebody mentioned that the mole is a conversion unit. It surely is. It is...

Wow... thanks everybody. I am in the middle of "Leonardo's" second lecture. If there is one thing I've learned so far in my adventure (OK I 'did' Schrodinger's take on QM as part of Chemistry but never really understood what was going on), it is this: Mathematicians and Physicists use a lot...

Homework Statement I'm a chemist, so forgive me. I'm looking at Leonard Susskind's course on 'Quantum Entanglement', and we've just started on Qbits. Electron spin: we have two column vectors (1,0) and (0,1) to represent the two states, call them 'up' and 'down'. The vector for the...

This is my first post, so please be gentle. I am also a Chemist, so please be doubly gentle. My question is about a plot found in the paper referred to earlier by Andrew Mason http://www.pnas.org/content/96/8/4224.full" The y-axis of the lower panel is delta(m-M) The paper says...