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0.1 mol of the following given antiviral compound (P) will weigh _______ $$\times 10^{-1}$$ g.
(Given: molar mass in g mol$$^{-1}$$ H: 1, C: 12, N: 14, O: 16, F: 19, I: 127)
Correct Answer: 372
The molecular formula of the given antiviral compound is obtained by counting the atoms present in the heterocyclic base and the substituted sugar moiety.
For the nitrogenous base:
Hence, the contribution is
$$\mathrm{C_4H_2N_2O_2I}$$
For the sugar moiety:
Hence, the contribution is
$$\mathrm{C_5H_8O_3F}$$
Therefore, the molecular formula of the compound is
$$\mathrm{C_9H_{10}N_2O_5FI}$$
Using the given atomic masses,
Hence, the molar mass is
$$108 + 10 + 28 + 80 + 19 + 127 = 372\ \mathrm{g\ mol^{-1}}$$
The mass corresponding to $$0.1$$ mole is
$$\text{Mass} = 0.1 \times 372 = 37.2\ \mathrm{g}$$
Expressing this in the required form,
$$37.2\ \mathrm{g} = 372 \times 10^{-1}\ \mathrm{g}$$
Therefore, the required integer value is
$$\boxed{372}$$
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