Chemistry Homework Help

Question

An NaoH solution was prepared by diluting 3.00 mL of a 20.0 M NaOH stock solution to a final volume of 500 mL. What is the molarity of the new solution?

Answer 1

The dilution equation is M_iV_i = M_fV_f

M_i = 20.0 M

V_i = 3.00 mL

M_f = ?

V_f = 500 mL

M_f = M_i V_i / V_f

= (20.0 M x 3.00 mL) / 500 mL

= 0.12 M