A student is asked to make a buffer solution at pH=4.50. She has a 100.0 mL of 5.0% by mass acetic acid solution (K_a a ​ =1.8×10^{−5} −5 ) with a density of 1.02 g/mL. How many grams of sodium acetate need to be added to the acetic solution to make the required buffer? Assume volume does not change.

Question

In number form....