1. Conversions:

* 1 liter = 33.814 fluid ounces

* 1.5 oz = 1.5 oz

2. Calculation:

* Divide the total fluid ounces in a liter by the size of each shot: 33.814 oz / 1.5 oz/shot = 22.54 shots

Answer: There are approximately 22.54 1.5 oz shots in a liter.