
Hey there! That's a great question. The weight of silver in a half dollar really depends on the specific year it was minted.
Based on the information provided about the Kennedy Half Dollar, the year is the key factor. For instance, a 1964 Kennedy Half Dollar is made of 90% silver and contains 0.3617 troy ounces of pure silver.
After that, the composition changed. Some later Kennedy half dollars were made with 40% silver, while the ones you find in circulation today don't contain any silver. So, to know the silver weight, you first need to check the date on the coin