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7. A few drops of bromothymol blue indicator are placed into 250 mL of 0.20 mol/L HCl(aq). A sample of 1.8 g of NaOH(s) is then dissolved into this solution. The final colour of the solution is predicted to be

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What is the pH of the HCl solution? THen, dissolve the 1.8 g NaOH. Which is in excess? With that excess, what the the resultant pH?

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