Musical instruments like trumpets and trombones are made from an alloy called brass. Brass is composed of copper and zinc atoms and appears homogeneous under an optical microscope. The approximate composition of most brass objects is a 2:1 ratio of copper to zinc atoms, but the exact ratio varies somewhat from one piece of brass to another.
Would you classify brass as an element, a compound, a homogeneous mixture, or a heterogeneous mixture?


Musical instruments like trumpets and trombones are made from an alloy called brass. Brass is composed of copper and zin...
Calculate % composition: Brass is an alloy made of copper and zinc. The density of copper is 8.96 g/mL and the density of zinc is 7.14 g/mL. If the density of a sample of brass is 8.72 g/mL, what is the percent copper in the brass? Hint: “Grandma’s chocolates” are composed of a caramel center and a chocolate coating. The measured density of a “Grandma’s chocolate” is 1.045 g/cm3. Knowing that the density of her caramel is 1.160 g/cm3 and...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc
Alloy
having a difficult time figuring out how to tackle the
following:
please help! thank you.
equation 5 is included in here
Name: Date: Section: Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy 1. On the following page, construct a graph of N vs % AL. To do this, refer to equation 5 and the discussion preceding it. Calculate for % Al=0.25.50.75, and 100. Place these points on the graph and Draw the best straight...