Question

A two metal alloy is 85% iron by mass. How many grams of manganese are found in a 36 gram sample of the alloy?

Answer 1

5.4g

Step-by-step explanation:

Metal Alloy = Iron + Manganese

Composition of Iron = 85%

Mass of Alloy = 36 g

Mass of Iron = 85/100 * 36 = 30.6g

Mass of Manganese = Mass of Metal Alloy - Mass of Iron

Mass of Manganese = 36g - 30.6 g = 5.4g