What is the total weight of a pre 1965 half dollar?

A pre-1965 half dollar, specifically the Kennedy, Franklin, and Walking Liberty designs, weighs 90% silver and 10% copper, totaling 12.5 grams. This corresponds to approximately 0.3617 troy ounces of silver. The total weight of the coin is 0.5 ounces, which includes both the silver and copper content.