Buffer preparation calculator

Buffer type (pKa):	Acetate (4.76) Tris (8.07)
pH:
Buffer concentration:	mol/L = M
Volume:	mL

For creating 1.00 L of the Acetate buffer of concentration
100 mmol/L and pH 4.76 you need:

Mass of sodium acetate anhydrous: 4.10 g
Volume of 100% (glacial) acetic acid: 2.86 mL
Fill the rest with water.
Adjust the final pH with HCl (if higher than planned) or NaOH (if lower than planned) dropwise.
Calculations are for 25 C.