The pH is too high for acetate buffer. It will have no buffering capacity because the pKa of acetic acid is about 4.8. You could make a sodium acetate solution at pH 7.98 by adding NaOH to sodium acetate or acetic acid, but it would not act as a buffer.

Interesting question:

To prepare an acetate buffer with a pH of 7.98, you need to use a mixture of acetic acid and sodium acetate. Recall the Henderson-Hasselbalch equation ratios: the pH of a buffer is equal to the pKa of the acid plus the log of the ratio of the salt concentration to the acid concentration. Let's do the math: The pKa of acetic acid is 4.76, so you can solve for the ratio of salt to acid:

pH = pKa + log([salt]/[acid])

7.98 = 4.76 + log([salt]/[acid])

log([salt]/[acid]) = 3.22

[salt]/[acid] = 1662

The calculation would indicate that you need 1662 times more sodium acetate than acetic acid in your buffer solution. You can choose any convenient concentration for your buffer, as long as you maintain this ratio. For example - if you want to make a 0.1 M buffer, you need 0.1 M acetic acid and 166.2 M sodium acetate. However, as this is not a practical concentration for sodium acetate, so you might want to use a lower concentration, such as 0.01 M. In this case, you would need 0.01 M acetic acid and 16.62 M sodium acetate.

To make 1 L of this buffer, you would need to dissolve 0.6 g of acetic acid and 1369 g of sodium acetate in water and adjust the volume to 1 L. Alternatively, you can use a buffer calculator to find the exact mass of each component for your desired volume and concentration.

You can also try this, for making an acetate buffer with a pH range of 3.6 to 5.6, but you would need to adjust the pH with NaOH or HCl to reach 7.98.