Question

The lemon juice has a pH of about 2.5. Assuming the acidity of the lemon juice is due solely to citric acid, that citric acid is monoprotic acid, and that the density of the lemon juice is 1.0g/mL then the citric acid concentration calculates to 0.5 percent by mass. Estimate the volume of 0.0100 M NaOH required to neutralize a 3.71 g sample of lemon juice. The molar mass of citric acid 190.12 g/mol.

Answer 1

V_NaOH=(3,71*0,5)/(100*190,12*0,01)=0,0098 L = 9,8mL