At stp how many liters of oxygen are required to react completely with 3.6 liters

1 answer:

3 0

If it is assumed that this reaction is taking place at STP (standard temperature and pressure) then one mole of gas occupies 22.4L

You can then calculate that 3.6L of Hydrogen contains 0.16mol 
1mol/22.4L x 3.6L = 0.16mol 

Every 2 moles of Hydrogen require 1 mole of oxygen to form water. Therefore half of the number of moles of oxygen are required. 
0.16mol/2 = 0.08mol 

Again, we know that at STP 1 mol occupies 22.4L 
0.08mol x 22.4L/mol = 1.79L of O2 needed. 

Also 3.6/2 = 1.8 All ideal gasses will occupy the same ammount of space at STP

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