Question about Kennedy Clad halves?I do not understand? Please help!?

Question

Monex says 90% coins Are 14.35 an ounce
Monex says 40% coins Are 14.45 an ounce.Which are clad.
A 10.00 roll of clads weigh 8 ounces.A man has on ebay a 100 Kennedy Clads and He says their a 14 ounces of silver in it.Is Monex Prices counting the silver count or the coin weight of the coins.So is 100 coins =80 ounces or 14 ounces Look up Monex on Google Latest prices,This is confusing Me .I need an expert.And if they are worth so much how come they do not give the same amount of money as they do for 40 % silver as they do for 90 % coins with the same Quality of coin? Thank You in advance.

Thank you so much.So when Monex says that Clad coins are 14.45 an oz they are talking about .1479 times 14.45.Or 100 clads are worth about 14.79 oz

So 100 coins are worth about 213.00.Is this right

Answer 1

There is only one Kennedy half that has 90% silver 1964. The weight of the whole coin does not matter, but the weight of the silver does. and has .36169 oz. of pure silver. Now the 40% clad coins from 1965-1970 as well as some 1776-1976 halves, has .1479 oz pure silver net composition. The total weight of a gold or silver coin is best used to tell if it is a fake, but when selling the gold or silver, it is the actual weight of the pure gold or silver that counts. Remember gold and silver are weight under the Troy ounce system. So 100 - 40% 1/2's has 14.79 troy ounces.