What is the concentration of borate in the borax solution

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Question- You titrate a 10.00 mL sample of a solution of borax with HCl. If it requires 29.67 mL of 0.100 M HCl to reach the endpoint, what is the concentration of borate in the borax solution? (Do not use scientific notation to report your answer. Use the correct number of significant figures.)

0.148

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