Alchemist Dedication says you get 2* free infused reagents per day. This part is clear :
You gain the alchemist’s infused reagents class feature, gaining a number of reagents each day equal to your level. You also gain the Alchemical Crafting feat and four additional formulas for 1st-level alchemical items, as well as the ability to create free items during your daily preparations. Your advanced alchemy level is 1 and doesn’t increase on its own.
What is unclear, is how many actual items you can turn this into. You seem to get Advanced Alchemy, at least you have a level for it. The Advanced Alchemy feature of full Alchemists states:
For each batch of infused reagents you spend, choose an alchemical item of your advanced alchemy level or lower that's in your formula book, and make a batch of two of that item.
So how many items can I make?
*) On 2nd level, when you can take this feat