A uranium alloy has density of 18.75 g/cm3. Find the volume if occupied(adsbygoogle = window.adsbygoogle || []).push({});

by a critical mass of 49 kg of this alloy? The critical mass itself can be decreased to 16

kg if the alloy is surrounded by a layer of natural uranium ( neutron reflector). What is the volume of the smaller mass?

I am sorry but I have no idea how to do this question, I just don't get how to start , like should i use moles or possibly nuclear equations. No idea

Lastly, more importantly any good sites to teach how to draw Lewis structure

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Mass-Volume Question

**Physics Forums | Science Articles, Homework Help, Discussion**