Calculate the concentration of acetic acid (Blank 1) and acetate (Blank 2) needed to prepare 100 mL of a 0.3 M buffer at pH 4.5 (pKa = 4.76). Use 3 significant figures and units.

a) Acetic acid (Blank 1): 0.15 M, Acetate (Blank 2): 0.15 M
b) Acetic acid (Blank 1): 0.30 M, Acetate (Blank 2): 0.15 M
c) Acetic acid (Blank 1): 0.15 M, Acetate (Blank 2): 0.30 M
d) Acetic acid (Blank 1): 0.30 M, Acetate (Blank 2): 0.30 M