How many liters of a 5.5%?(m/v) glucose solution would you need to obtain 50g of glucose?

How do scientists think that gravity affected the formation of our solar system?

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?

How many moles are in 43.9 l of oxygen