Oxaloacetic acid (2-ketosuccinic acid) is a very important intermediate in metabolism. The compound is involved in the citric ac
id cycle for energy production within the cell. However, the compound is unstable and slowly decomposes spontaneously. Draw the decomposition products.
1 answer:
Answer:
Carbon dioxide and acetoacetic acid
Explanation:
Oxaloacetic acid is a β-keto acid. It decarboxylates readily via a six-membered cyclic transition state.
The initial products are carbon dioxide and the enol of a ketone.
The enol is unstable and rapidly tautomerizes to the more stable keto form — acetoacetic acid.
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Answer: The approximate molecular mass of the polypeptide is 856 g/mol
Explanation:
To calculate the concentration of solute, we use the equation for osmotic pressure, which is:
Or,
where,
= osmotic pressure of the solution = 4.19 torr
i = Van't hoff factor = 1 (for non-electrolytes)
Mass of solute (polypeptide) = 0.327 g
Volume of solution = 1.70 L
R = Gas constant =
T = temperature of the solution =
Putting values in above equation, we get:
Hence, the molar mass of the polypeptide is 856 g/mol