arks Develop Window Help until your sess Take Test: Elimination Quiz-Sp18 CHEM 3

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arks Develop Window Help until your sess Take Test: Elimination Quiz-Sp18 CHEM 308 Question Completion Status: 0.00317 mole O 0.00263 mole QUESTION 7 0.5 p Using the Stoichiometric Information Table below, if 0.145 moles of C are obtained, what is the percent yield of C? (Note that in the table given, "n" is an abbreviation for "mol so "g/n" means /mol". Reaction A + 2B Amounts25.0g 15.0g MW (gn 74gn 8.Sgn 111 g 40g/n -64.4 % 0387 % 0773 % 013.9% 0.5 poi QUESTION 8 Save All Answers Click Save and Submit to save and submit. Click Save All Answers to save all answers

Explanation / Answer

No.of moles of A = 25/111 = 0.225

B = 15/40 = 0.375

B undergoes completion faster than A.

0.375 - 2x = 0

x = 0.1875

Since it is a stoichiometric reaction, half the number of moles of B consumed is produced as C.

Therefore, x amount i.e., 0.1875 moles of C is formed.

Given, 0.145moles of C is formed practically. So, percentage yield of C is 0.145/0.1875 × 100 = 77.33%

  

  

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