How many grams of energy will be required to neutralize 12.2 gram of benzoic acid?
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We need to convert grams to moles. The molecular weight of benzoic acid is 122.12 g/mol. 12.2g is almost 0.1 mole
After that we need the same number of moles of NaOH as we have benzoic acid, to occur neutralization. The molecular weight of sodium hydroxide is 39.997 g/mol or 40g/mol and by calculating we get 0.1 mole is 4 g of NaOH.The ratio needed for neutralization is 1:1.
Phenyl-COOH + NaOH → Phenyl-COO-Na+ + H2O
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