Chemistry
posted by Peter .
Calculate the density of a substance in pennyweights per peck that has a volume of 0.371 hogsheads and a mass of 41.6 kg.
1 pennyweight = 1.55 grams
1 hogshead = 238.5 liters
1 peck = 9.091 liters.
Answer in units of pw/pk.

I think pw = pennyweight and pk is peck.

I would drop the class if you instructor is going to continue to do this busy work. Physics concepts are much more important.
density=mass/volume
= 41.6kg(1000g/kg)(1.55grams/pw)/((.371hd*2.385liters/hg*(9/091liters)) 
oops typo
== 41.6kg(1000g/kg)(1.55grams/pw)/((.371hd*2.385liters/hg*(1 peck/9.091liters)) 
Is the final answer like 662482.4741?

100

Calculate the density of a liquid if 53 mL of it has a mass of 41.78 g. Answer in units of g/mL.