for this lab you will be using 3 color ph indicators: bromothymol blue, methyl orange, and turmeric with pka values of 7.0, 3.4, and 7.8, respectively. assume you have three beakers, each containing one of the color indicators, to which you add equal aliquots of sodium hydroxide. as the ph of the three solutions increases, predict the order in which the indicators would undergo their characteristic color change, i.e., most acidic to most basic.