Calculating the mass of a reactant The reaction between H2 and O2 and produces 26.2 g water. How many grams of O2 reacted?​

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Question:

Calculating the mass of a reactant The reaction between H2 and O2 and produces 26.2 g water. How many grams of O2 reacted?​

Answers

Answer:23.3 gramsExplanation:First we'll need the balanced equation for this equation.2H₂ + O₂ → 2H₂OThis shows us that we need one mole of O₂ to produce two moles of water.Now we need to convert grams to moles.There is 18.01528 g for every mole of water26.2/18.01528 = 1.454321There 1.454321 moles of water producedRemember that two moles of water are produced from a gram of O₂1.454321/2 = 0.727160.72716 moles of O₂ were usedNow convert moles back to grams. There are 31.998 g for every mole of O₂31.998 x 0.72716 = 23.267723.2677 grams of oxygen were used

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