Calculate the number of molecules in the following substance
(a)4.4g of carbon dioxide gas

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?