How much is a 1776-1976 silver Morgan dollar worth?

The last Morgan dollar was struck in 1921, this is a Eisenhower bicentennial dollar, more than 200 million were made from 1975 to 1976 and is likely face value.

Some do have a collectible value but are not general circulation coins, just coins sold from the Mint. Take it to a coin dealer for an idea of value.