if you started with 15 mL of benzaldehyde and sufficient quantities of all other reagents, and obtain benzoin in a 70% yield, what is the mass in grams of your product

What is the gold assay

; lc

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.