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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: cncbmb on July 31, 2009, 09:32:25 AM

Title: Voltage Reading for a Spectrophotometer
Post by: cncbmb on July 31, 2009, 09:32:25 AM

I've never seen the equation in the box in this image: http://img65.imageshack.us/img65/9045/voltagespect.gif

I searched for spectrophotometer calcluations but mainly found Beer's law stuff. Where does this equation come from, and where would be a good place to read about this specific equation?

Title: Re: Voltage Reading for a Spectrophotometer
Post by: Borek on August 11, 2009, 01:57:14 PM

Write Nerns't equation for potential of the chloride ion selective electrode, solve for [Cl^-].