what is the chemical composition of 24K gold?

Answer 1

.999 or 24 karat gold is nearly pure and the notation for it is "Au".
Gold of this purity must be refined to rid of impurites. Gold nuggets found in nature are usually at best only 22 karat which would mean that at least 6% of it's composition is other metals like sivler or copper.

Answer 2

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RE:
what is the chemical composition of 24K gold?

Answer 3

If you are looking at jewelry, It will be at least 80 percent gold (Au)
The rest are alloy mixtures.
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he purity of gold is defined either in karats or fineness. A karat is 1/24 part of pure gold by weight, so 24-karat gold is pure gold. To find the percentage of gold in an object when the purity is stated in karats, multiply the number of karats by 100 and divide by 24. 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. A gold object containing 800 fine gold, or a fineness of 800, is 80 percent gold.

Alloys are mixtures of two or more metals, and many metals form alloys with gold. Most gold alloys are mixtures of gold, copper and silver. Gold alloyed with copper takes on a reddish color and is commonly 18K or less. If some of the copper is replaced with silver (keeping the gold content constant), the alloy takes on a yellow green hue or a rose color, depending on the mixture of copper and silver. So-called green or very pale yellow gold has been alloyed with silver but no copper. White gold used to have additions of nickel, copper and silver, but because of allergies, palladium is now used in place of nickel. Zinc is also used in gold alloys
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Pure 24 karat gold is very soft and will not take the any shapw. Therefore the pure gold is melted into a bath that will plate a gold based form (alloy) of the desired shape of jewelry

Answer 4

Pure (24 carat) gold is a deep yellow colour (an orange shade of yellow) and is soft and very malleable. The coloured carat gold alloys range in gold content from 8 to 22 carats (33.3% - 91.6% gold)

For 24-carat gold: Twenty-two parts gold (24 carat), 2 parts silver, and 1 part copper; refractory.
For 18-carat gold: Nine parts gold (18 carat), 2 parts silver, and 1 part copper; refractory.
For 16-carat gold: Twenty-four parts gold (16 carat), 10 parts silver, and 8 parts copper; refractory.
For 14-carat gold: Three parts gold (14 carat), 2 parts silver, and 1 part copper; more fusible.

Answer 5

Gold. Pure gold

Answer 6

Excellent idea. Now if we can figure out some way to fuel our vehicles with the stuff we will be in big business.