How to Test 18-Karat Gold?

Answer Gold, or Au in scientific terms, is a precious metal that in pure form is soft, pliable, ductile, and resistant to oxidation. While its pure form properties make gold useful in a variety of ways th... Read More »

Top Q&A For: How to Test 18-Karat Gold

Is 18 karat gold cheaper than 14 karat gold?

The karat scale of gold indicates the purity of the metal, with 24 karats being pure gold. Lower karats indicate a certain amount of other metal alloy added to the gold to make the product more dur... Read More »

How many atoms are in 7.3g of 18 karat gold?

By convention, goldsmiths and metallurgists express the purity of gold as a fraction of 24, thus 18-karat gold contains 18/24 or 75 percent pure gold. Avogadro's number indicates that a mole of a s... Read More »

What is an ounce of 24 karat gold worth?

You will often see gold quoted at a price per ounce. The price of gold varies daily as a result of market and global economic conditions. On March 25, 2010, the price of an ounce of 24 karat gold, ... Read More »

What does it mean when a ring is set in 14 karat gold electroplate?

Electroplating is a process where a thin layer of gold is adhered to another object to give a gold finish, in this case, 14 karat gold. According to, a thin gold finish on a ring can ... Read More »