Home
Class 12
CHEMISTRY
Calculate the mass ascorbic acid (Vitami...

Calculate the mass ascorbic acid (Vitamin C, `C_6H_8O_6)` to be dissolved in 75g of acetic acid to lower its melting point by `1.5^@c`.Kf =3.9 K kg/ mol

Text Solution

Verified by Experts

Molar mass of `C_6H_8O_6` (absorbic acid) = `176g mol^(-1)`
`Delta T_f =1.5^@ W_2` (mass of solute) = `(Delta T_bM_2W_1)/(1000K_f) (1.5xx176xx75)/(1000xx3.9)=5.08`
Promotional Banner

Topper's Solved these Questions

  • POLYMERS

    A N EXCEL PUBLICATION|Exercise Question Bank|68 Videos
  • SURFACE CHEMISTRY

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|65 Videos

Similar Questions

Explore conceptually related problems

Calculate molecular mass of glucose (C_6H_12O_6) molecule.

Calculate the mass of oxalic acid dihydrate (H_2C_2O_4.2H_2O) required to prepare 0.1M, 250 ml of its aqueous solution.

Calculate the molecular mass of the following? i. C_6H_(12)O_6 ii. HNO_3

Calculate the concentration of sugar (C_12H_22O_11) in mol L^-1 if its 20g are dissolved in water to make a final volume of 2L.

What mass of NaCl ("molar mass =58.5 g mol"^(-1)) dissolved in 50g of water will lower the freezing point by 5^@C? The freezing point depression constant, K_p for water is 1.86" K kg mol"^(-1) , van't Hoff factor for NaCl is 1.87.

Calculate the molecular mass of glucose (C_6H_(12)O_6 and sulphuric acid (H_2SO_4)

Calculate ofhe amount of benzoic acid '(C6H5 COOH)' required for preparing '250 ml' of'0.15 M' solution in methanol. -

Ethyl acetate is formed by the reaction between ethanol and acetic acid and equilibrium is represented as: 'CH_3 COOH_( )+C_2 H_5 OH_(l) hArr CH_3 COOC_2 H_5_(l)+H_2 O_(l)' i) Write the concentration ratio (reaction quotient), 'Q_c', for this reaction (note: water is not in excess and is not a solvent in this reaction) ii) At '293 K', if one starts with '1.00' mol of acetic acid and '0.18 mol' of ethanol, there is '0.171' mol of ethyl acetate in the final equilibrium mixture. Calculate the equilibrium constant. iii) Starting with '0.5' mol of ethanol and '1.0' mol of acetic acid and maintaining it at 293 ' K, '0.214' mol of ethyl acetate is found after sometime. Has equilibrium been reached?

Calculate the mass percentage of benzene (C_6H_6) and carbon tetrachloride (CCl_4) if 22g of benzene is dissolved in 122g of CCl_4

A N EXCEL PUBLICATION-SOLUTIONS-QUESTION BANK
  1. Vapour pressure of pure water at 298 K is 23.8mmHg. 50g of urea is dis...

    Text Solution

    |

  2. Boiling point of water at 750mm Hg is 99.63^@C How much sucrose is to ...

    Text Solution

    |

  3. Calculate the mass ascorbic acid (Vitamin C, C6H8O6) to be dissolved i...

    Text Solution

    |

  4. Calculated the osmotic pressure in pascals exerted by a solution prepa...

    Text Solution

    |

  5. Colligative properties are properties of solutions which depend on the...

    Text Solution

    |

  6. Colligative properties are properties of solutions which depend on the...

    Text Solution

    |

  7. Mr. Raju has determined the molecular masses of different solutes in d...

    Text Solution

    |

  8. What is the significant of van't Hoff factor ?

    Text Solution

    |

  9. Elevation of boiling point is a colligative property. What is colligat...

    Text Solution

    |

  10. Colligative properties can be used to determine the molecular mass of...

    Text Solution

    |

  11. For intravenous injections, only solutions with freezing point depress...

    Text Solution

    |

  12. Relative lowering of vapour pressure, elevation of boiling point, depr...

    Text Solution

    |

  13. An aqueous solution solution of a non-volatile solute boils at 373.053...

    Text Solution

    |

  14. Vapour pressure of a solution is different from that of pure solvent. ...

    Text Solution

    |

  15. Vapour pressure of chloroform (CHCl3) and dichloro methane (CH2Cl2) at...

    Text Solution

    |

  16. Colligative properties are properties of solution which depends on the...

    Text Solution

    |

  17. Colligative properties are properties of solution which depends on the...

    Text Solution

    |

  18. Elevation of boiling point is a colligative property. What is colligat...

    Text Solution

    |

  19. The boiling point of benzene is 353.23K. When 1.80g of a non-volatile ...

    Text Solution

    |

  20. Liquid solutions can be classified as ideal and non-ideal solution on ...

    Text Solution

    |