What mass of naturally occurring uranium is closer to 238 u , 235 u or 234 u?

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

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 ?

How many moles are contained in 5.6 l of h2 at stp