A homogenous mixture of metals is called an alloy. An alloy is found to be 30% by volume gold with the rest being aluminum. Aluminum has a density of 2.70 g/cm³. Gold has a density of 13.1 g/cm³. If a piece of alloy contains 3.70 lbs. of gold, how many kg of aluminum does it contain?
Pure platinum is too soft to be used in jewelry because it scratches easily. To increase the hardness so that it can be used in jewelry, platinum is combined with other metals to form an alloy. To determine the amount of platinum
There are two alloys consisting of zinc, copper and tin. The first alloy contains 25% zinc and the second alloy contains 50% copper. The percentage of tin in the first alloy is twice that in the second alloy. 200 kg of the first
A piece of metal alloy (a solution of metals) is made of gold and silver. It is 20% by mass silver. An irregularly shaped piece of this alloy contains 0.356 lb of gold. When the alloy is added to a graduated cylinder that contains