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Zat anorganik umum (unsur, oksida, asam, basa, garam)Cukup sering

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1.92\ \mathrm{g}

of copper reacts with some concentrated nitric acid. The copper dissolves completely and the nitric acid is also completely used up, giving

1.12\ \mathrm{L}

of a mixture of

\mathrm{NO_2}

and

\mathrm{NO}

(at STP; ignore

\mathrm{N_2O_4}

) (Relative atomic mass: Cu 64;

V_m=22.4\ \mathrm{L/mol}

). How many moles of

\mathrm{HNO_3}

are consumed? ( ).

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