1.78 g of an optically active L-amino acid (A) is treated with $(NaNO_2/HCl)$ at $(0^\circ C)$. $(448 \, cm^3)$ of nitrogen was evolved at STP. A sample of protein has 0.25% of this amino acid by mass. The molar mass of the protein is:

Question

$(34,500 \, g \, mol^{-1})$

$(35,600 \, g \, mol^{-1})$

$(36,500 \, g \, mol^{-1})$

$(35,400 \, g \, mol^{-1})$

Solution

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