How Do You Find The Percentage Of Copper In A Brass Alloy Assignment?
Brass consists of copper and zinc, with the zinc concentration typically ranging from 5 percent to 40 percent. These two metals can be alloyed in various proportions to produce brass with different chemical and physical properties, including hardness and color. Many of the prescribed methods for determining the copper content of brass–such as iodometric titration and spectrophotometric analysis–require expensive equipment and considerable chemical expertise. An alternative method based on density–the ratio of a substance’s mass to the volume of space it occupies–requires relatively inexpensive equipment and little mathematical prowess. “Zero” the balance by ensuring that it reads zero with no sample in place. Most electronic balances are equipped with a “zero” or “tare” button specifically for this purpose that resets the balance to zero. After you’ve zeroed the scale, place the brass sample on it and record the mass in grams. Fill the graduated cylinder about half full with water.
