Home
Class 12
CHEMISTRY
(a) Define the following terms : {:((i...

(a) Define the following terms :
`{:((i)"Ideal solution",(ii)"Osmotic pressure"):}`
(b) Calculate the boiling point elevation for a solution prepared by adding 10g `CaCl_(2)` to 200g of water, assuming that `CaCl_(2) `is completely dissociated.
`(K_(b)"for water"=0.512Kg mol^(-1),"Mole mass of "`CaCl_(2)=111g mol^(-1))`

Text Solution

AI Generated Solution

### Step-by-Step Solution **(a) Definitions:** (i) **Ideal Solution**: An ideal solution is a solution that obeys Raoult's law at all concentrations and temperatures. In an ideal solution, the interactions between the molecules of different components are similar to the interactions between the molecules of the same component. This means that the vapor pressure of each component in the solution is proportional to its mole fraction. (ii) **Osmotic Pressure**: Osmotic pressure is the pressure that must be applied to a solution to prevent the flow of solvent into it through a semipermeable membrane. It is a measure of the tendency of a solvent to move into the solution by osmosis. The osmotic pressure can be calculated using the formula: \[ \Pi = iCRT \] ...
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise Outside Delhi: Set-II|11 Videos
  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise Outside Delhi Board: Set-III|10 Videos
  • XII BOARDS

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SET-1|20 Videos
  • SAMPLE PAPER 2019

    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise SECTION: D|1 Videos

Similar Questions

Explore conceptually related problems

Determine the osmotic pressure of a solution prepared by dissolving 25mg of K_(2)SO_(4) in 2L of water at 25^(@)C , assuming that it is completely dissociated.

Calculate the boiling point of solution when 4g of Mg SO_(4) (M=120g "mol"^(-1)) was dissolved in 100g of water, assuming MgSO_(4) undergoes complete ionization (K_(b) " for water " = 0.52 K " kg mol"^(-1))

Determine the osmotic pressure of a solution prepared by dissolving 2.5xx10^(-2)g" of " K_2SO_4 in 2L of water at 25^(@)C , assuming that it is completely dissociated. (R = 0.0821 Latm K^(-1) mol^(-1) ,Molar mass of K_2SO_4 =174 g mol^(-1)

(a) Define the terms osmosis and osmotic pressure. Is the osmotic pressure of a solution a colligative property? Explain. (b) Calculate the boiling point of a solution prepared by adding 15.00g of NaCl to 250.0g of water. ( K_(b) for water =0.512K kg "mol"^(-1) , Molar mass of NaCl=58.44g )

Calculate the freezing point of solution when 1.9 g of MgCl_(2) (M = 95 g Mol^(-1) ) was dissolved in 50g of water, assuming MgCl_(2) undergoes complete ionization. ( K_(f) for water = 1.86 K kg mol^(-1) ).

Determine the osmotic pressure of a solution prepared by dissolving 0·025 g of K_(2)SO_(4) in 2 litres of water at 25^(@)C , assuming that K_(2)SO_(4) is completely dissociated. (R=0.0821 " Lit-atm K"^(-1) "mol"^(-1)," mol. wt. of " K_(2)SO_(4)=174"g mol"^(-1))

A solution is prepared by adding 2 g of a substance A to 18 g of water. Calculate the mass per cent of the solute.

A solution is prepared by adding 10 g of NaCl to 18 g of water. Calculate mole fraction of NaCl. (Molar mass of NaCl = 58.5 g).

Calculate the freezing point of an aqueous solution containing 10.5g of Magnesium bromide in 200 g of water, assuming complete dissociation of Magnesium bromide. (Molar mass of magnesium bromide =184 g mol ^(-1) , for water =1.86K kg mol^(-) ).

Calculate the freezing point of a solution containing 8.1 g of HBr in 100g of water, assuming the acid to be 90% ionized. [Given : Molar mass Br = 80 g/mol, K_(f) water = 1.86 K kg/mol].

XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-[SET-1]
  1. An element exists in bcc lattice with a cell edge of 288 pm. Calculate...

    Text Solution

    |

  2. Calculate Delta(r)G^(@) and log K(c) for the following reaction at 29...

    Text Solution

    |

  3. For a first order reaction, show that the time required for 99% comple...

    Text Solution

    |

  4. Define the following terms: (i) Tyndall effect (ii) Electrophoresi...

    Text Solution

    |

  5. (a) Write the principle involved in the following : {:((i)"Zone refi...

    Text Solution

    |

  6. A mixed oxide of iron and chromium is fused with sodium carbonate in f...

    Text Solution

    |

  7. (a) Give reasons for the following : (i) Compounds of transition ele...

    Text Solution

    |

  8. For the complex ion [F(en)(2)CI(2)]^(+) write the hybridization type a...

    Text Solution

    |

  9. Rearrange the compounds of each of the following sets in order of reac...

    Text Solution

    |

  10. (a) Why phenol is more acidic than than ethanol ? (b) Write the mech...

    Text Solution

    |

  11. Identify A, B and C in the following reactions : (i) CH(3)CH(2)Clun...

    Text Solution

    |

  12. (a) Why water soluble vitamins must be supplied regularly in the dite ...

    Text Solution

    |

  13. (i) Name a substance which can be used as an antiseptic as well as dis...

    Text Solution

    |

  14. Once there was heavy downpour for about 3 hours in the early morning. ...

    Text Solution

    |

  15. (a) Explain why on addition of 1 mole glucose to 1 litre water the boi...

    Text Solution

    |

  16. (a) Define the following terms : {:((i)"Ideal solution",(ii)"Osmotic...

    Text Solution

    |

  17. (a) When concentrated sulphuric acid was added to an unknown salt pres...

    Text Solution

    |

  18. (a)Account for the following (i) Reducing character decreases from S...

    Text Solution

    |

  19. (a) Account for the following : (i) Propanal is more reactive than p...

    Text Solution

    |

  20. Write structure of A, B C and D in the following eactin sequence : {...

    Text Solution

    |