(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I need to find out the ka of bromcresol green for a 5 different solutions. I have the absorbance at the maximum wavelength for each solution. In the lab report the next box says

An-Ahb / Ab(negative ion) -An

i have the values for An,Ahb, and Ab but im not sure if the equation is subtracting the values or multiplying by negative values

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Finding Ka of various solutions

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