Compound MF MW Amount Density mmol m.pb.p, Hazard Symbol g/cm3 CsHi002 138.16681

Question

Compound MF MW Amount Density mmol m.pb.p, Hazard Symbol g/cm3 CsHi002 138.1668100 mg1.035 cm 54 to 56 C mp Dimethoxybenzene 170 ul 0.7858 Tert-butyl alcohol C4H100 74.123 g/mol (82.2°C) bp Acetic Acid 340 ul CH3COO 60.052 g/mol 1.049 118° C g/mL Sulfuric Acid H2SO4 0.67 ml 1.84 337 °C 98.072 g/mol g/mL Diethyl Ether (C2Hs)20 74.123 2.0 m 0.706 34.6 °C 4 g/mol g/mL Sodium Bicarbonate NaHCO384.007 2.0 ml 2.2 50C Sodium Sulfate Anhydrous Na2SO4 142.03 500 mg 2.66 cm 884 °C 1,4,-di-t-butyl-2,5- C16H2602 dimethoxvbenzene 0.9 102-104 250.38 (product)

Explanation / Answer

Friedel-Crafts reaction

moles of 1,4-dimethoxybenzene 0.1 g/138.1668 g/mol = 7.2 x 10^-4 mol

moles tert-butanol = 0.170 ml x 0.7858 g/ml/74.123 g/mol = 1.8 x 10^-3 mol

limiting reactant : 1,4-dimethoxybenzene

theoretical moles of product formed = 7.2 x 10^-4 mol

Theoretical yield of 1,4-di-t-butyl-2,5-dimethoxybenzene = 7.2 x 10^-4 mol x 250.38 g/mol = 0.180 g

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