what is the karat count of gold in a bracelet that contains 15 grams of gold and 5 grams of silver
75% gold (by weight) = 18 karat
To determine the karat count of gold in a mixed-metal bracelet, you'll need to know the ratio of gold to other metals in the alloy. Karat is a measure of the purity of gold, with 24 karat gold being 100% pure gold. The remaining portion is usually made up of other metals such as silver, copper, or zinc.
In this case, the bracelet contains 15 grams of gold and 5 grams of silver. To find the karat count, you'll need to compare the weight of gold to the total weight of the alloy.
1. Calculate the total weight of the bracelet: 15 grams (gold) + 5 grams (silver) = 20 grams.
2. Find the percentage of gold in the alloy: (15 grams / 20 grams) * 100% = 75%.
3. Convert the percentage to a karat count: Every 4% represents 1 karat. So, 75% gold would be approximately 18.75 karats.
Therefore, the karat count of gold in the bracelet containing 15 grams of gold and 5 grams of silver is approximately 18.75 karats.