Adipic acid, C_6 H_8 O_4 H_2, is one of the starting materials used in the produ

Question

Adipic acid, C_6 H_8 O_4 H_2, is one of the starting materials used in the production of nylon. It is prepared commercially by oxidation of cyclohexane, C_6 H_12: C_6 H_12+ O_2 rightarrow C_6 H_8 O_4 H_2+ H_2 O Balance the equation for the formation of adipic acid. If 25.0 grams of C_6 H_12 are reacted with 25.0 g of oxygen, how many grams of adipic acid can be produced? Starting with 25.0 grams of C_6 H_12, 33.5 grams of adipic acid is isolated. What is the percent yield of adipic acid in this reaction?

Explanation / Answer

a)

balanced equation is

2C6H12 + 5O2 ----> 2C6H8O4H2 + 2H2O

b)

no of moles of C6H12 = 25g / 84.16 g/mol = 0.297 moles

no ofmoles of O2 = 25g / 32 g/mol = 0.78125 moles

from the balances equation 2 moles of of C6H12 and 5 moles of O2 mix and will produce 2 equilent of adipic acid

starting materials are in 2:5 ration so

no of moles of product = no ofmoles of C6H12 = 0.297 moles

weight of the product = moles x molar mass

= 0.297g x 146.14 gr/molw

= 43.40 grams

Part C

the previous problem we got is theritical yield

now % of yield = actual weight / theritical weight x 100

= (35.5 / 43.40) x 100

= 81.8%

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