Chemistry II

posted by .

Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 3.28 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 8.43 °C. The freezing point and Kf constant for cyclohexane can be found here.
Calculate the molar mass of quinine.

  • Chemistry II -

    delta T = Kf*m
    Solve for m.

    m = mols quinine/kg solvent
    Solve for mol quinine

    mol quinine = g quinine/molar mass quinine.
    Solve for molar mass.

  • Chemistry II -

    43.4

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    when benzoic acid and quinine is dissolved to dichlromethane and 2M NaOh, what is the organic layer being formed?
  2. chemistry

    Benzoic acid and quinine are dissolved in a solution of dichloromethane. Besides the normal neutral forms for benzoic acid and quinine, will there be any other chemical form(s) present in the dichloromethane solution?
  3. medical

    Quinine, which is found in tha bark of the cinchona tree is effective in A. Reducing fevers B. Reducing the sting of a burn c. Treating bacterial infections D. Reducing convulsions
  4. Chemistry

    How many moles of nitrogen are in 5.0×10−2 mole of quinine?
  5. Regulation for Drug Development

    Quinine which is found in the bark of the cinchona tree, is effective in?
  6. Chemistry

    Benzoic acid and quinine are dissolved in a solution of dichloromethane. (benzoic acid pKa = 4.2; quinine pKa = 8.5) a) Besides the normal neutral forms for benzoic acid and quinine, will there be any other chemical form(s) present …
  7. chemistry

    Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 2.50 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point …
  8. Chemistry

    Please help, I can't do this and its stressing me out ?
  9. chemistry

    Can anyone help me with this question. Propose a method in detail to determine the concentration of two components, quinine and anthracene in a mixture using fluorimetry. You have access to pure sulutes and an appropriate solvent. …
  10. AP Biology

    I have the compound C20H24O2N2, A quinine molecule The Question: Calculate the molarity of 100.7g of quinine in 275 mL of water.

More Similar Questions