The atomic ratio of \( \mathrm{H}^{1} \) to \( \mathrm{H}^{3} \) in a sample of water is \( 1: 8...

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The atomic ratio of \( \mathrm{H}^{1} \) to \( \mathrm{H}^{3} \) in a sample of water is \( 1: 8 \times 10^{-8} \). How many \( \mathrm{H}^{3} \) atoms are present in \( 9.0 \mathrm{~g} \) of such water sample? (Answer in the order \( \left.10^{15}\right)\left(N_{\mathrm{A}}=6 \times 10^{23}\right) \)
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