[DOC] [TLE] Fineness - Wikipedia [PAR] The fineness of a precious metal refers to the ratio by weight of the primary metal 
to any added base metals or impurities. Many precious metals are used in the 
form of alloys. ... It is an extension of the older karat system of denoting the purity 
of gold by fractions of 24, such as "18 karat" for an alloy with 75% (18 parts per 24
)... [DOC] [TLE] Metal Facts about Gold and Silver Jewelry [PAR] Facts About Karats, Gold, Sterling Silver, Filled, Vermeil, .999 fine, Plating, alloys 
... There are many different metals and alloys used in modern jewelry making. ... if 
you have copper sensitive skin, because old European silver is .800 fine, ... 11k 
Gold = 45.83% Gold and 54.17% alloy, 12k Gold = 50% Gold and 50% alloy. [DOC] [TLE] The Real Value Of Gold & Silver - Know Your Percentages | eBay [PAR] 12k or 12 karat gold contains 50% gold - 14k or 14 karat gold contains 58% gold 
16k or 16 karat ... Over the years, I have seen many people confused by this and 
taken advantage of. ... Pass it on if it helped you and good luck with your gold and 
silver buying! Sincerely - ... Have something to share, create your own guide. [DOC] [TLE] The difference between Gold, Gold Plated and Gold Filled Jewelry ... [PAR] Apr 12, 2015 ... In the Karat System, pure elemental gold is referred to as 24K gold. There ... 18K 
= 75% Pure Gold; 12K = 50% Pure Gold; 9K = 33% Pure Gold ... For example, if 
something is 18K gold (75% pure gold) then it is 750 parts out of 1000 pure gold. 
... Unlike gold plated jewelry, gold filled jewelry has a commonly... [DOC] [TLE] SOLUTION: One Hundred Percent Pure Gold is 24-Karat, which is ... [PAR] Most Gold jewely is 14-karat gold, approximately 58% gold. If 18-Karat gold is 75
% gold and 12 Karat Gold is 50%, how much of each should be used to make a... [DOC] [TLE] Gold and Gold Karats - DiamondIdeals.com [PAR] Gold has been the inspiration for jewelry since the beginning of time. ... metal that 
will maintain much of its original look (polish and detail) for many years. 12 karat (
50% gold) ... If you prefer a deep, rich, golden color, we recommend 18k. Many... [DOC] [TLE] What is a Gold Karat? - Live Science [PAR] Dec 24, 2012 ... ... gold becomes less fine and the number of karats drops. For example, 12 karat 
gold contains 50 percent gold and 50 percent alloys by weight. [DOC] [TLE] The Algebra of Gold [PAR] Many people buy gold jewelry. ... It is said that all the gold in the world will fit in a 
50 foot cube, which would only fill about 1/3 of our gym. ... 22 karat gold has 22 
parts of gold and 2 parts of some other metal. ... If the gold is plated onto 
something so that the gold is less than .000007 inches thick it can be called gold 
flashed or... [DOC] [TLE] Problem Series  Chapter 1 [PAR] of grams of sulfuric acid in 1.00 gallon of battery acid if the solution has a density 
of 1.28 ... By which factor will the volume of a cylinder increase if we triple its 
radius and double its height? ... For example, an alloy that is 50% gold is 12 carat
. [DOC] [TLE] Is 24K gold pure? - Scientific American [PAR] The term is used to refer to the chemical element itself (its symbol is Au) and also 
to objects ... For example, 12-karat gold is 50 percent pure gold. Alternatively, the 
fineness is the amount of gold in parts per 1,000, so pure gold has a fineness of 
1,000. ... If some of the copper is replaced with silver (keeping the gold content... [DOC] [TLE] All About Jewels: GOLD - Enchanted Learning [PAR] Gold is a very soft metal when it is pure (24

Question: If something is 50% gold, it has this many karats
Answer: 12