Sodium acetate (82 g/mol) is dissolved in 250 mL of 0.40 M acetic acid to make a buffer with pH = $\mathrm{p}{K}_a+0.301$ ($\log 2=0.301$). Find the mass of sodium acetate in grams, to one decimal place (neglect volume change).

Numerical answer type, answer in g, tolerance 0.1.