It depends on the shot size. In the UK there are two shot sizes which can legally be served in a pub or bar: 25ml and 35ml. This means either 40 or 28.6 shots are in a litre depending on whether they're 25ml or 35ml respectively.
0.035
50
35cm3
That is 35 grams.
Depends on where you are. In Europe, a shot is 20ml. In the UK, a shot is either 25ml or 35ml. In the US, a shot is one fluid ounce, roughly equivalent to 30ml. So divide 1500 (ml in 1.5 litres) by the value of your choice from above and you get the answer...
1.2 US fl oz. = about 35mL
Approximately 42.8 measures
4 syns per 35ml :)
About 0.03698 US quarts per 35mL
0.35dl
Using some simple dimentional analysis: x shots/ 1 liter * 44.3 millitters/1 shot = x*.0443 liters /1liters ~ 22.5 shots assuming shot =1.5 ounces