write my assignment 2290
HNMR of the starting material and product of ethyl 3-hydroxybutanoate
- please draw both structures for all distinct type of protons (with different letters for the product and starting material)
- what is the molar ratio of the starting material and product. calculate the mass % of ethyl 3-hydroxybutanoate(product)?
- what was the concentration of ethyl 3-hyroxybutanoate that dissolved in methanol to put into the polarimeter?
3.4 g(9.00 mmol) NaBH4
1.4 g (9.28 mmol) tartaric acid
0.310 g (2.30 mmol) ethylacetoacetate
0.036 g ethyl 3-hyroxybutanoate
polarimetry:
2.00 ml methanol
reading: -0.035
Thank you
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