The hydrogen atom in the COOH group is acidic, and it can be removed using base to form a COO- group.?

To determine the concentration of a solution of lactic acid, a chemist titrates a 21.00 mL sample of it with 0.1010 M NaOH and finds that 9.00 mL of titrant are required to reach the equivalent point. What is the concentration of the lactic acid solution in moles per liter?|||Lactic acid is a monoprotic acid. It reacts 1:1 molar ratio with NaOH


Mol NaOH in 9.0mL of 0.1010M NaOH = 9/1000*0.1010 = 9.09*10^-4 mol NaOH





Therefore the 21mL of lctic acid solution contains 9.09*10^-4 mol acid


Mol acid in 1000mL = 1000/21*9.09*10^-4 = 0.043 mol in 1000mL solution





Molarity of lactic acid solution = 0.043 M