How many moles of water are produced when #"2.15 moles"# of oxygen gas react with excess hydrogen gas? Chemistry Stoichiometry Mole Ratios 1 Answer Saliha · Stefan V. Oct 23, 2017 #"4.30 moles"# Explanation: #"I mol"# of #"O"_2# produces #"2 moles"# of #"H"_2"O"#, so #"2.15 moles"# of #"O"_2# produce #2/1×2.15 = "4.30 moles H"_2"O"# Answer link Related questions Question #a106e Question #e2e86 Question #a1072 Question #c5bf1 Question #dc373 Question #c5bf9 Question #a1076 Question #dc377 Question #b984f Question #19ea3 See all questions in Mole Ratios Impact of this question 3278 views around the world You can reuse this answer Creative Commons License