pH and significant figures

pH and significant figures

In a quick addition to this post and this post, here’s a note about pH and significant figures. Firstly the ‘rule’. When taking the log of a number that is expressed in scientific notation (as hydrogen (hydronium) ion and hydroxide ion concentration...
log, ln, units and activities

log, ln, units and activities

Honestly, I don’t pretend to be a good math(s) student – in fact quite the opposite is true – so me trying to explain the niceties of transcendental functions (that’s what logs are, don’t you know?) and such, is unlikely to end in either...