For the reaction shown below, 2.00 g of 4- chloroacetophenone, 10.0 mol of sodium broohydride, 3 equivalents of acetic anhydride (Ac₂O), 2 equivalents of triethylamine (TEA), and 1.0 mmol of DMAP are used to obtain 1.80 g of the desired product, 1-(4-chlorophenyl)ethyl acetate. What is the percent yield of the desired product? 4-chloroacetophenone 154.59 g/mol O 78.06% 79.08% O 77.4% 56.29% O 70.25% NaBH DCM:MOH OH 1-44-chlorophenylethanol 156.61 g/mol Ac₂0 TEA DMAP DCM Desired Product 198.04 g/mol

1.5 mL of 1-pentanol reacts with excess acetic acid to form propyl acetate. Draw the full reaction mechanism and calculate the theoretical yield.

Calculate the density of Freon 12, CF2Cl2, at 30.0 °C and 0.954 atm.

In the lab for the synthesis of methyl m-nitrobenzoate from methyl benzoate using  HNO3 and  H2SO4 via EAS, the product is recrystallized to remove impurities using 95% ethanol. Would o-nitrobenzoate and methyl p-nitrobenzoate be considered impurities? If that is so, how come ethanol can remove o-nitrobenzoate and methyl p-nitrobenzoate, but has no effect on m-nitrobenzoate? Thank you.

Use the following atomic weights and quantities to calculate the overall % yield of 4-carboxy-4'-pentyllbiphenyl. Remember that your yield must be based on the stoichiometry (balance the equation!), the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C = 12, H = 1, Br = 80, Mg = 24, O = 16 4-bromo-4'-pentylbiphenyl magnesium dry ice 4-carboxy-4'-pentylbiphenyl formula formula weight milliliters density grams 9.683 1.305 1.977 8.307 moles % yield ? Answer:

The yeast Brettanomyces causes spoilage in wine. Brettanomyces produces 4-ethylphenol, which at high levels gives wine a bad flavor (described as "barnyard" or "sweaty animal"). Diagnostic labs test for the presence of Brettanomyces in wine by testing for 4-ethylphenol. Draw 4-ethylphenol (p-ethylphenol). Include all hydrogen atoms. Select Draw Rings More Erase I need all Carbon and hydrogen listed. Not just the ones not on the ring

Reduction of ketones: How to calculate the theoretical yield in reduction of 4-tert-butylcyclohexanone with sodium borohydride? I am confused on which is the limiting reagent. we used 0.102 g of 4-t-butylcyclohexanone and 0.012g of NaBH4.

Potassium sorbate is added as a preservative to certain foods to prevent bacteria and molds from causing food spoilage and to extend the foods’ shelf life. The IUPAC name of potassium sorbate is potassium (2E,4E)-2,4-hexadienoate. Draw a structural formula for potassium sorbate.

2-methyl-2-butanol was mixed with sulfuric acid. Draw out the structures for this reaction and state the limiting reagent.

I'm not sure how to go about calculating for percent yield of my product. Do I need to calculate theoretic yield first? I always mix up the formulas.  I was performing the horner wadsworth reaction , synthesis of 3,4-Methylenedioxystilbene. The reaction was between diethyl benzylphophonate and 3,4-dimethylenedioxybenzaldehyde. Aliquat 366 was the catalyst.