250,000
A 1 oz silver bar weighs exactly 1 troy ounce, which is approximately 31.1 grams. It's important to note that precious metals like silver are measured in troy ounces, not standard (avoirdupois) ounces — a troy ounce is slightly heavier. So when you buy a 1 oz silver bar, you're getting about 31.1 grams of pure silver.
250,000
The value changes as market prices fluctuate. As of 20 October 2012, silver is worth $32.06/oz, so a 10 oz. silver bar is worth $320.60.
A 10 oz bar of silver is worth $150 US dollars.
It is the volume(size) of the bar.
3 oz
The answer will depend on its dimensions.
Coin shops, pawn shops, some jewelry stores.
Weight in oz of bar x current market value per oz
there is none
I bought mine for 190 Canadian dollars yesterday. Nov 6th, 2008