What is the total amount of pure ethanol (in grams) for 4 x 12 oz beers (alcohol content 5%) and?

It looks like your asking tow different questions, if you don't mind me saying. In the titel you got; "What is the total amount of pure ethanol (in grams) for 4 x 12 oz beers (alcohol content 5%) and?" And by ethanol I just asumed you ment achohol, becasue you shouldn't have any ethanol in beer? So that is 68.0389grams.

As for "1 x 1.25 oz (100 proof) vodka shot." that would = 17.718452grams.