The chemical reaction is 𝐻2+1/2𝑂2→𝐻2𝑂

So for every molecule of hydrogen, you start with you will get one molecule of water. Or, for every mole of hydrogen, you will get one mole of water.

How many moles of hydrogen do you start with? Hmmm.

You only know that you start with 5 grams so use the molar mass of 𝐻2 to find the number of moles

𝑀(𝐻2)=2×𝑀(𝐻)=2Γ—1.008𝑔/π‘šπ‘œπ‘™=2.016𝑔/π‘šοΏ½... more

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Felicia Jones
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