16. Magnesium has a density of 1.74g/cm3. A strip of magnesium metal measures 0.104m long and is 2.52mm wide. If the mass of the strip is 0.104 g, what is the thickness of the magnesium strip

228.1 m

Explanation:

Area of the magnesium strip = 0.104m  * 2.52 * 10^-3 = 2.62 * 10^-4 m^2

Density of Magnesium strip = 1.74g/cm3

Mass of magnesium strip = 0.104 g

But

density = mass/ area * thickness

density * area * thickness = mass

thickness  = mass/density * area

thickness  = 0.104 g/2.62 * 10^-4  * 1.74

thickness  = 0.104 g/ 4.56 * 10^-4

thickness  =  228.1 m

the answer is either b or c