The Material Safety Data Sheets (MSDS) for all the chemicals involved in this la

Question

The Material Safety Data Sheets (MSDS) for all the chemicals involved in this lab are on iLearn. Read these and answer the following questions: Which chemical is the most dangerous in this lab? Explain why you chose your answer for), and the safety precautions you will take when handling this material. Fill in the reaction table below. Make sure you correctly calculate the molar amounts of your reactive materials. Based on your answers to Q2, which is the limiting reagent in this reaction? Calculate the Theoretical Yield of your product, i.e. the mass you would expect to recover, assuming 100% conversion to product.

Explanation / Answer

Solution

(1a) camphorsulphonic acid

(1b) This is because it can cause burns by all exposure routes. Product is a corrosive material. Ingestion causes severe swelling, severe damage to the delicate tissue and danger of perforation.

(2)

(3) Benzaldehyde dimethyl acetal is the limiting reagent.

(4) The theoretical yield of the product = 3.33 mmol x 178.23 g/mol = 0.5939 g

Name Formula mol-eq. Mol wt mmol amount Benzaldehyde dimethyl acetal C9H12O2 1.0 152.193 33. 0.50 mL 2-Methyl propane-1,3-diol C4H10O2 2.52 90.122 8.3 0.75 mL Camphorsulfonic acid C10H16O4S --- --- --- 5 mg Dichloromethane CH2Cl2 --- ---- --- 3 mL Product C11H14O2 1.0 178.23 3.33 0.5939 g

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