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GChem Question

Discussion in 'DAT Discussions' started by SMC2UCLA2_, Nov 19, 2005.

  1. SMC2UCLA2_

    SMC2UCLA2_ Senior Member
    5+ Year Member

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    What is the molality of 85% phosphoric acid, H3PO4, if the density of the solution is 1.70 g/ml?

    A. 1000 * (1.70/1) * (100.0 / 15.0) * (1.70/1) * (85.0 / 100.0) * (1/98) m
    B. 1000 * (1/1.70) * (100.0 / 15.0) * (1.70/1) * (85.0 / 100.0) * (1/98) m
    C. 1000 * (1/1.70) * (100.0 / 15.0) * (1/1.70) * (85.0 / 100.0) * (1/98) m
    D. 1000 * (1/1.70) * (15.0 / 100.0) * (1.70/1) * (85.0 / 100.0) * (1/98) m
    E. 1000 * (1/1.70) * (100.0 / 15.0) * (1.70/1) * (100.0 / 85.0) * (1/98) m

    the correct answer is B according to DAT achiever. Im having trouble setting this thing up.
     
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  3. seoul

    seoul Membership Revoked
    Removed 2+ Year Member

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