You have 2.5 L of 5.5 M HCL, hydrochloric acid, waiting in a beaker to be diluted. How much extra water do you need to add to the beaker
to make it 1.5 M? (not what level, but how much extra water would
you pour in)

Calculate the number of molecules present in 0.750 mol of mgo.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

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 ?