Question

Which of the following combinations can be used to make a buffer? (Assume equal volumes are used.) A) 0.50 M HF and 0.20 M NaF B) 0.50 M HF and 0.50 M NaOH C) 0.50 М НF and 0.50 M НСІ D) 0.50 M HCl and 0.50 M NaF