To do this, you need to know the atomic weight of the element you're dealing with, found on any Periodic Table. The atomic weight is the mass in grams of the element in one mole - this will provide you with a conversion factor. So take the measurement in grams and divide it by the atomic weight to convert to moles. Really what you're doing is multiplying the number by 1 mole, and dividing it by the equivalent of one mole, the atomic weight. That's the thought process behind unit analysis and how you get your "units to cancel".
In this case, the answer is about .25 moles B.
You need the equation mass = Mr x Moles.
So 3 x 16(Mr of Oxygen atom) = 48.
Four grams of oxygen contain 0,752767.10e23 atoms.
What is the mass of 4.0 liters of oxygen?
32*4=128gm.
3.5
604 g
How many litres of oxygen is 28 % using a face mask?
Human lungs are 2 liters in volume by average. So... Average breath rate is 12 breaths per minute. In one minute the patient would take in 24 liters of air. You are supplying 2 liters of pure oxygen + 4.8 liters from air (20% of the 24 liters (Percent oxygen in dry air)) = 6.8 liters of Oxygen per minute. 6.8 liters oxygen / 24 liters intake = 28.3% Oxygen or you can look at the table given by the books at http://www.fpnotebook.com/ER/Procedure/LwFlwOxygn.htm Nasal Cannula, Flow 0 liters per minute: 21% (Room Air), Flow 2 liters per minute: 29% But I like the mathematical method. That's just me!
The percent by mass of oxygen in N2O4 is 69,56 %.
The mass of 4.38 liters of oxygen is 6,259 g.
40 kilograms
Convert 40% oxygen to liters
3.5
denstiy= mass/volume d=0.014/10 d=.0014
40 liter= 40/1000 kiloliter =0.04 kiloliters
604 g
1cm3=1ml40cm3=40ml=0.04l
The atomic mass of hydroxide (rounding) is 17.008 atomic mass of oxygen 16.00 + atomic mass of hydrogen 1.008
40 liters = 40 000 cc
Magnesium oxide is a solid, not measured in litres.
The molar mass of any gas in liters is 22.4 For example The molar mass of O2 and O are both 22.4 since gas is compressible.