Chemistry

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Diarsenic trioxide is the number one source of arsenic; determine the mass of a sample of this extremely poisonous material containing 4.03x10^18 molecules.

  • Chemistry -

    I assume you mean 4.03E18 molecules OF As2O3.
    mols in 4.03E18 molecules = 4.03E18/6.02E23 = ?
    g As2O3 = mols As2O3 x molar mass As2O3.

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