Please post a new question with the coin's date. It's not possible to give a value without that information.
A 1922 P brilliant uncirculated dollar peace dollar is worth about $200.00. It is 90% silver and 10% copper.
In MS60 Grade uncirculated, a 1880 S Morgan Silver Dollar is worth about $52. In MS65 Brilliant Uncirculated, it is worth over $330.
About a dollar for the silver in it. Unless it's a Gem Brilliant Uncirculated coin then its retail value is maybe $2.00
1921 is by far the most common date for Morgan silver dollars. With silver prices dropping at the moment (17 April 2013), one is worth $18-$20.
An 1879 "Silver Dollar" is a Morgan dollar.
A Morgan 1882 Silver Dollar has 0.7735 of an ounce of silver.
For the bicentennial Eisenhower dollar coins, only some of the "S" mint-marked coins contain any silver, and that is just 40%. None were released onto circulation. Please post new question with information about the mintmarks. It makes a difference in the value.
No, a silver dollar does not equal a half dollar. Instead, in the USA it equals a full dollar.
The Morgan Silver Dollar can range from $25 to $70, and the Peace Silver Dollar from $50 to $300.
The coin is a Susan B. Anthony dollar and has no silver in it, it's just a dollar coin.
There is 24 grams of silver in a 1891 US silver dollar.
If it is a "S" mintmark Eisenhower dollar, it's 40% silver, if not, no silver.