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What is the pH of a solution resulting from 2.50 mL of 0.075 M HCl being added to 35.00 mL of pure water? Bromocresol purple is an indicator that changes color over a range from pH=5.2 to pH=6.8. What is Ka of bromocresol purple? The area of a circle is given by (pi k squared minus twelve pi k plus 36 pie) square inches. What is the radius of the circle? On a 5,500 dollars loan with 24.99 percent interest how much is your monthly payment for 4 years? When a dilation can be written in function notation where is the center of dilation located?