Theoretical Yield in Multi-Step Synthesis

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SUMMARY

The theoretical yield of methyl m-nitrobenzoate from 10.0 g of benzoic acid is calculated through a two-step synthesis process. The first step yields 11.15 g of methyl benzoate, followed by a second step yielding 14.83 g of methyl m-nitrobenzoate. The reactions involved are Ph-COOH + CH3OH + H2SO4 to produce Ph-COOCH3, and Ph-COOCH3 + HNO3 + H2SO4 to produce methyl m-nitrobenzoate. Accurate molar masses are crucial for precise calculations, confirming the importance of using correct formula weights.

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Homework Statement



Exactly how do you find the theoretical yield of methyl m-nitrobenzoate from 10.0 g of benzoic acid?


Homework Equations



1) Ph-COOH + CH3OH + H2SO4 --> Ph-COOCH3
2) Ph-COOCH3 + HNO3 + H2SO4 --> methyl m-nitrobenzoate



The Attempt at a Solution



10.0 g benzoic acid*(1 mol benzoic acid/122.122 g benzoic acid)*(1 mol methyl benzoate/1 mol benzoic acid)*(136.149 g methyl benzoate/1 mol methyl benzoate) = 11.15 g methyl benzoate from FIRST STEP as theoretical yield

11.15 g methyl benzoate*(1 mol methyl benzoate/136.149 g methyl benzoate)*(1 mol methyl m-nitrobenzoate/1 mol methyl benzoate)*(181.147 g methyl m-nitrobenzoate/1 mol methyl m nitrobenzoate) = 14.83 g methyl m-nitrobenzoate from 10.0 g benzoic acid as theoretical yield?

Thanks.
 
Last edited:
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That looks good if the formula wts. you give are accurate. I didn't check.
Also, you could have just multiplied the number of moles of benzoic acid by the formula wt. of m-nitromethylbenzoate.
 

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