Calculate the concentration of NaOH if 19.0 mL reacts exactly with 24.6 mL of 0.397 M HCl.
A) 0.257 M
B) 0.307 M
C) 0.514 M
D) 1.028 M
E) 0.397 M

Question

Quizplus · Accepted Answer

The reaction between NaOH and HCl is a 1:1 molar ratio. Using the formula M1V1 = M2V2, where M1 and V1 are the molarity and volume of HCl, and M2 and V2 are the molarity and volume of NaOH, we find M2 = (0.397 M * 24.6 mL) / 19.0 mL = 0.514 M.

Calculate the Concentration of NaOH If 19