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goldfiish [28.3K]
2 years ago
12

For the reaction 2H 2 +O 2 2H 2 O calculate the percent yield if 860. of water is produced when 100. g of hydrogen react with an

excess of oxygen?
Chemistry
1 answer:
-BARSIC- [3]2 years ago
3 0

The percent yield : 95%

<h3> Further explanation </h3>

Given

Reaction

2H₂+O₂ ⇒2H₂O

Required

The percent yield

Solution

mol of Hydrogen(as a limiting reactant) :

\tt \dfrac{100}{2}=50

mol H₂O based on H₂ , and from equation mol ratio H₂:H₂O=2 : 2, so mol H₂O = 50

Mass of water(theoretical yield) :

\tt mass=50\times 18=900~g

\tt \%yield=\dfrac{860}{900}\times 100\%=95\%

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