Determina los litros de propano que se necesitan quemar para obtener 25 litros de CO2 en CNPT C3H6 + O2 CO2 + H2O
a) 8.33 litros c) 240.84 litros
b) 93.33 litros d) 6 litros

Why do cells appear different in distilled water than they do in 10% salt water?

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

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?