The liquid pentafluorobenzene has a density of 1.51 g/ml at 20 °c. if a sample of this liquid at 20 °c has a volume of 2.08 l, how many grams of liquid are there in the sample?

3140.8 g of liquid are there in the sample

Explanation:

Pentafluorobenz. density = Pentafluorobenz. mass / Pentafluorobenz. volume

Make a conversion from L to mL because the units of density

2.08L .  = 2080 mL (*1000)

1.51 g/mL = Pentafluorobenz. mass / 2080 mL

1.51 g/mL . 2080 mL = 3140.8 g

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.