Buffers are important in various applications such as food and consumer products. Contact lens solution has a pH of 7.03. After adding 5.30 mL of 0.1018 M NaOH to 40.0 mL of the extract solution, the pH rose to 8.09. Calculate the moles of NaOH added to the solution. Enter your answer as a decimal number. Pay attention to significant figures in your answer.
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