The largest ruby in the world is 10.9 cm long, 9.10 cm wide, and 5.80 cm thick, giving it a overall volume of 575 cm^3. If the density of ruby - a form of aluminum oxide - is 3.97 g/cm^3, what is the mass of the largest ruby?

Dec 13, 2015

I found: $2283 g$

Explanation:

I think you can use the definition of density as:

"density"=("mass")/("volume")

so that:
$\text{mass"="density"*"volume}$
$\text{mass} = 3.97 \cdot 575 = 2282.75 \approx 2283 g$