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From the 1870s to 1964, all US silver coins were made of an alloy of 90% silver and 10% copper regardless of denomination. There are 16x25 = 400 ounces in 25 lbs so 90% of that is 0.9 x 400 = 360 oz.
But be careful !! Silver is normally weighed and priced in troy ounces which are slightly heavier than standard US ounces. The approximate conversion factor is 1 US ounce = 0.91125 troy ounces, so the silver in the bag would weigh 360 x 0.91125 = 328.05 troy oz.
What else can I help you with?
Can coins transfer electric current?
old ones that are pure silver, but most newer coins are mixed metal and have copper among other metals that concuct electricity mixed in!
What does 50 ounces equal to in a mixed number?
50 ounces does not need to be a mixed number since it is a whole number.
How are coins pure silver?
Most coins intended for circulation are not pure silver. While recently there are coins such as the American Silver Eagle which are pure silver, silver has not been in any American circulating coin since 1970 when the 40% silver alloy was removed from the half dollar, pre-1964 Quarters, Dimes and Half-Dollars contain 90% silver with 10% copper. Silver is a very soft metal and would not hold up to daily wear and tear of everyday transactions so it needs to be mixed with a harder metal for it to be resistant to wear and tear.
How much is a 3 ounce silver chain worth?
If the gross weight of the chain is 3 ounces, you still need to determine the silver content of it -- it probably is not 100% silver -- it's probably mixed with some amount of copper for strength. Once you have determined the exact silver content in Troy ounces, then you can multiply it by the current silver spot price -- which is about $17.00 as of 12/22/09 Se the related links for a link to the Kitco website, where you can monitor daily silver spot prices.
What is a Copper and silver solution called?
A copper and silver solution is called an alloy. Alloys are mixtures of two or more metals that are combined to enhance the strength, durability, or other properties of the individual metals. Copper and silver are commonly mixed together to create decorative items, jewelry, or coins.
Is a silver coin an element or mixture?
Silver itself is an element, symbol Ag Silver coins are a mixture - like in UK they were 92.5% silver until 1920 then 50% until 1946 - for example.
What is the Value of 1892 Gold Silver Dollar?
There's no such thing as a gold silver dollar. Dollar coins were made of gold (1854-1889) or silver (1794-1935) but the 2 metals were never mixed. Most likely you have a silver dollar coin that was plated. Unfortunately being plated reduces its value to that of the raw metal in it, about $10 as of 06/2009.
How many ounces of mixed nuts in a cup?
1 cup = 8 ounces 1 ounce = 0.12 cup
Which country mixed lead and gold to make new coins?
ROME
Is dental silver diff than coin silver?
yes, dental silver is mixed with something to make it harder.
What is gold and silver mixed called?
Gold and silver mixed together is called electrum. It is a naturally occurring alloy typically consisting of about 70-90% gold and 10-30% silver.
What is adulterated with silver for sterling silver jwelery?
Some percentage of alloyed is mixed with silver to make sterling silver jewelry. What is the name of this alloyed ?
