Answer to Question #160857 in General Chemistry for joseph rowland

Question

Pure gold is defined as having 24 carats. When mixed in an alloy, the carats of gold are given as a percentage of this value. For example, a piece of jewelry made with 50% gold has 12 carats. State the purity of this piece of red gold jewelry in carats.

Answer 1

Red gold jewelry always conatins a mixing of 25% copper y mass to make it durable and strong. That according to the simple parrallel ration rule, gives us a purity level of gold to be exactly 18 carates. The red gold is 75% pure.