temp and pressure and so forth have NOTHING to do with what happens to the density here.
You STILL have 4 g in the container
before you had
4 g/100 cm^3 or .04 g /cc
now you have
4 g/50 cm^3 or .08 g/cc
A 100-cm3 container has 4 g of ideal gas in it at 250 kPa. If the volume is changed to 50 cm3 and the temperature remains constant, what is its new density?
Answer
400 kg/m3
250 kg/m3
80 kg/m3
50 kg/m3
2 answers
80kg/m³