pH and significant figures

pH and significant figures

Mar 19, 2015 | AP, Big Idea 6 | 9 comments

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

Mar 18, 2015 | AP, Big Idea 4, Big Idea 6 | 0 comments

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...

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