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March 27, 2017

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making ice cream involves surrounding the ice cream canister with a bath of salt ice water. to get the mix of freeze at 7.00 C,how many grams of salt (NaCl;molar mass = 58) will you need to add to 3.5 kg of ice water bath? (Kf of water = 1.86C/m)

  • chemistry - ,

    delta T = i*Kf*molality
    You know delta T, i=2 (2 particles for NaCl), you know Kf, solve for molality.
    Then molality = moles/kg solvent
    Solve for moles.
    Then moles = grams/molar mass.'
    Solve for grams Nacl.

  • chemistry apex - ,

    374 - 375 grams

  • chemistry - ,

    381.99g

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