Chemistry

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I could use some help please.
Ammmonia, NH3, can be made by reacting Nitrogen with Hydrogen.
N2+3H2=2NH3

How many moles of NH3 can be made if 7.5 moles of H2 react eith enough N2?

Thank-you in advance for any help

• Chemistry -

N2 + 3 H2 -> 2 NH3
Just use their stoichiometric coefficients (number before the chemical's name) from the balanced chemical reaction to make ratios and solve for the unknown. In this case, 2 moles of NH3 are produced for every 3 moles of H2. Thus,
7.5 moles H2 x (2 moles NH3 / 3 moles H2) = 5 moles NH3

Hope this helps~ :)

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