chemistry

The enthalpy of solution of nitrous oxide (N2O) in water is -12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per 100. g of water. Calculate the molal solubility of nitrous oxide in water at 1.600 atm and 20 oC. Hint, first find Henry's law constant at 20 oC and 1.00 atm.

  1. 👍 0
  2. 👎 0
  3. 👁 85
asked by Raoul
  1. I suppose you are to use M and m as the same.
    0.121g/100 gH2O = solubility.
    mol N2O = 0.121/60 = approx o.002 and 0.002/0.1kg solvent = 0.02m
    p = KcC
    1 atm = Kc*0.02
    Kc = 1 atm/0.02 = 50 atm/m

    p = KcC
    1.600 = Kc from above *C
    Solve for C in molality and convert to g/100 if desired.

    1. 👍 0
    2. 👎 0
    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. CHEMISTRY

    The enthalpy of solution of nitrous oxide (N2O) in water is -12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per 100. g of water. Calculate the molal solubility of nitrous oxide in water at 1.600 atm and 20 oC. Hint,

    asked by Raoul on May 4, 2014
  2. CHEMISTRY

    The enthalpy of solution of nitrous oxide (N2O) in water is -12 kJ/mol and its solubility at 20 oC and 1.00 atm is 0.121 g per 100. g of water. Calculate the molal solubility of nitrous oxide in water at 1.600 atm and 20 oC. Hint,

    asked by Raoul on May 4, 2014
  3. chemistry

    ogen and oxygen react to form nitrous oxide as: 2 N2 (g) + O2 (g) ⇌ 2 N2O (g) Of a mixture of 0.482 mol N2 and 0.933 mol O2 is placed in a reaction vessel of 10.0 L and allowed to from N2O at a temperature for which Kc = 2.0 X

    asked by Marwan on December 7, 2016
  4. chemistry

    Nitrous Oxide(N2O), or laghing gas, is mommonly used as a anesthetic in denistry and surgery. How many moles are present in 8.4 liters of nitrous oxide at STP?

    asked by Meteknesh on December 14, 2011
  5. (12)Chemistry - Science (Dr. Bob222)

    Calculate delta E for a process in which 88.0 g of nitrous oxide gas (N2O) is cooled from 165 ˚C to 65 ˚C at a constant pressure of 5.00 atm. The molecular weight of nitrous oxide is 44.02 g/mol, and its heat capacity at

    asked by Ana on May 8, 2014
  6. Chemistry (Check)

    Nitrogen combines with oxygen to form a variety of compounds. One of these compounds is called nitrous oxide or "laughing gas." What is the formula of nitrous oxide if this compound is 63.65% N and 36.35%O by weight? I got N2O

    asked by Anonymous on October 13, 2015
  7. Chemistry; Stoichiometry

    Consider the reaction 2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al (27.0 g/mol) with excess CuSO4? 1. 70.6 g 2. 57.2 g 3. 129 g 4. 31.4 g Consider

    asked by Annalie on May 6, 2010
  8. Chemistry

    Laughing gas (nitrous oxide, N2O) is sometimes used as an anesthetic in dentistry. It is produced when ammonium nitrate is decomposed according to the reaction NH4NO3(s) −! N2O(g) + 2H2O(§¤) . How much NH4NO3 is required to

    asked by danny on April 9, 2015
  9. chemestry

    nitrous oxide (N2O) is used as an anesthetic. the pressure on 2.50 L of N2O changes from 105 k Pa to 40.5 kPa. If the temperature does not change, what will the new volume

    asked by Anonymous on July 18, 2011
  10. chemistry

    Nitrous oxide (N2O) is used as an anesthetic. The pressure on 2.50 L of N2O changes from 105kPa to 40.5 kPa. If the temperature does not change, what will the new volume be? I know the Boyle's law is P1 x V1 = P2 x V2

    asked by meg on March 4, 2008

More Similar Questions