The density of liquid mercury is 13.6 g/mL at 25 degrees Celsius.
What is the dinsity in g/cm cubed?
What is the conversion of 13.6 g/mL to English 1b/qt?

Remember,

1 cm^3 = 1 mL

Sorry, for the next question, but I'm not acquainted with english units. You'll be able to do the first question now?

Convert grams/mole to pounds/gallon or pounds/cubic foot