Between changing the composition of the US one-cent coin (often referred to as a "penny," even though the word has never appeared on the US coin) and experimenting with the size of the date, there are 7 different types of 1982 pennies: * 1982 copper, small date * 1982-D copper, small date * 1982 copper, large date * 1982-D copper, large date * 1982 copper-plated zinc * 1982-D copper-plated zinc * 1982-S copper proof It's easy to tell between the different mint marks; just look below the date. The plated zinc cents are slightly lighter, and don't give the distinctive "ring" of a copper (actually a copper-zinc alloy) cent. The only way to tell between the date sizes is to study pictures of the two, and notice the distinctions in how they look. Note that there was only one proof type, minted only in San Francisco.
The weights are different. Pre-1982 pennies are 95% copper and weigh 3.11 grams. Newer ones are mostly zinc and weigh 2.5 grams.
Presuming that you are asking about US Lincoln pennies, the answer is that it depends. If the pennies are pre-1982, they are 95% copper and 5% zinc and weigh 147 to the pound. If the pennies are post-1982, they are 2.5% copper and 97.5% zinc and weigh 181 to the pound. In 1982, both types were made. In 1943, pennies were made from steel coated with zinc (so-called "silver pennies" or "steel pennies") and in 1944 (and I think 1945 as well) from old brass shell casings, so their counts would be a bit different.
US pennies switched from copper to zinc due to the rising price of copper. Zinc is much less expensive.
It depends if you are talking about pre-1982 pennies or post-1982 pennies.
Cents weigh different amounts depending on their dates. Before 1982, cents weighed 3.11 grams. Cents issued after 1982 weigh 2.5 grams. Cents issued DURING 1982 could weigh either amount (is this getting complicated enough?) A pound is equivalent to 453.6 gm, So with pennies made before 1982 it would take 146 pennies to get 454.6 grams... With pennies made after 1982 it would take 182 pennies.
If the pennies were pre-1982 then 9 US pennies are very close to 1 ounce (9.145 pennies = 1 ounce). If the pennies are after 1982 then 11 US pennies are very close to one ounce (11.34 pennies = 1 ounce).
The pre-1982 pennies are 95% copper and 5% zinc. Post-1982 cents are 97.5% zinc and 2.5% copper.
Up into 1982, US pennies were 95% copper, but that year the composition was changed and now they're 97.5% zinc.
Pennies from 1982 and before were all copper
100 pennies = 1 pound.
It depends on the year. Before 1982, pennies contained 95% copper and 5% zinc. Those minted after 1982 are 97.5% zinc and 2.5% copper. Today's pennies weigh less. So if the majority of the pennies are after 1982, you would most likely have about 23,586 pennies, which is equal to $235.86 USD. If the majority of the pennies are before 1982, you would most likely have 18,960 pennies, which is equal to $189.60 USD. But then again you can smelt the pennies and sell the copper. I hope this helped you. :)
3.11 grams for pennies made from 1959 to 1982