Chemistry

posted by .

3.50 g of NH4Cl is added to 18.8 g of water. Calculate the molality of the solution.

  • Chemistry -

    m = mols/kg solvent
    m of the solution is twice that since +NH4Cl dissocites into NH4^+ & Cl^- (i.e., into two ions)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    An aqueous solution is 8.50% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.024g/mL. Calculate the molality, mole fraction, and molarity of NH4Cl in the solution. I know the formulas needed but I'm not sure where …
  2. Chemistry

    5.70 g of NH4Cl is added to 13.3 g of water. Calculate the molality of the solution.
  3. chemistry

    10g of nacl were added to 10ml of water. the resulting solution was diluted to be a final volume of 250ml. Given the density of the solution is 0.9864g/ml. Calculate the molality of the solution. Who helps
  4. Chemistry

    If some NH4Cl is added to an aqeous solution of NH3: A. pH of solution will decrease B. PH will not change C. pH will increase D. NH4Cl cannot be added to NH3 E. The solution will not have pH I think the answer is B, because if NH4Cl …
  5. chemistry

    8.90 g of NH4Cl is added to 19.7 g of water. Calculate the molality of the solution
  6. Chem

    4.30 grams of NH4Cl is added to 14.5 grams of water. Calculate the molality of the solution
  7. Chemistry

    A buffer solution is prepared by mixing 50.0 mL of 0.300 M NH3 with 50 mL of 0.300 NH4Cl. The pKb of NH3 is 4.74. NH3 + H2O-> NH4+ +OH- 7.50 mL of 0.125 M HCl is added to the 100 mL of the buffer solution. Calculate the concentration …
  8. Biology

    3grams of ammonium chloride has been added to 20mL of water. The initial temperature of the solutionis 18.0 degrees, and once the ammonium is added to the water, the temperature declines to 11 degrees. Given the following information, …
  9. Chemistry

    A solution is 0.10M in aqueous NH3. Calculate (a) the number of moles and (b) the number of grams of NH4Cl that must be added to 500mL of this solution to prepare a buffer solution with pH=9.15. You may neglect the volume change due …
  10. chemistry

    In a calorimetry experiment, 2.14 g of NH4Cl is dissolved in 100.0 mL of water. The temperature drops by 1.43°C. Calculate the molar heat of solution for NH4Cl.

More Similar Questions