# chemistry

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Hydrogen and oxygen react to produce water according to the equation below.
2 H2 + O2 2 H2O
How many liters of hydrogen at STP are needed to produce 0.24 mol H2O?

• chemistry -

You need t find the arrow key on your computer and use it. ==> or -->. Convert mols H2O to mols H2 using the coefficients in the balanced equation.
0.24 mol H2O x (2 mol H2/2 mol H2O) = 0.24 x 2/2 = 0.24 mols H2 neded.
volume = 0.24 mols H2 x (22.4 L/mol) = ?

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