If a box was filled with radon gas (density 9.73g/L), how many kilograms (kg) of radon are in the box? Chemistry Measurement Density 1 Answer anor277 Sep 23, 2016 Answer: And how big was the box? Explanation: #rho," density"# #=# #"Mass"/"Volume"#, and thus #"mass"=rhoxx"volume"#. We know the density becuase it is quoted in the question. We have no idea of the volume of the box, and thus will remain ignorant of radon mass. Related questions How can density be used to identify substances? How can you find mass from density? How are density mass and volume related? How do you calculate mass using density and volume? How do you convert mass to density? How do you determine the density of a gas? What is the density of water? What is linear mass density? Why does density change with temperature? How does density affect ocean currents? See all questions in Density Impact of this question 539 views around the world You can reuse this answer Creative Commons License