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Boiling point of water at 750 mm Hg is 9...

Boiling point of water at 750 mm Hg is `99.63^(@)C`. How much sucrose is to be added to 500 g of water such that it boils at `100^(@)C`? Molal elevation constant for water is `"0.52 K kg mol"^(-1)`.

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To solve the problem of how much sucrose needs to be added to 500 g of water to raise its boiling point to 100°C, we can follow these steps: ### Step 1: Determine the boiling point elevation (ΔTb) The boiling point of water at 750 mm Hg is given as 99.63°C. We want the boiling point to reach 100°C. \[ \Delta T_b = T_b (final) - T_b (initial) = 100°C - 99.63°C = 0.37°C \] ...
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Boiling point of water at 750 mm Hg is 99.63^@C . How much sucrose is to be added to 500 g of water such that it boils at 100^@C ? [Molal elevation constant of water is 0.52 K kg "mol"^(-1) ]

The boiling point of water at 750mm Hg is 99.63^(@)C . How muCHM sucrose is to be added to 500 g of water suCHM that it boils at 100^(@)C .

Knowledge Check

  • The boiling point of water of 735 torr is 99.07^@C The mass of NaCl added in 100g water to make its boiling point 100^@C is

    A
    10.68 g
    B
    5.34g
    C
    2.67g
    D
    26.7g

  • The boiling point of a glucose solution containing 12 g of glucose in 100 g of water is 100.34^@C . Boiling point of water is 100^@C . The molal elevation constant of water is

    A
    `0.51^@C//"Molal"`
    B
    `51^@C//"Molal"`
    C
    `5.1^@C//"Molal"`
    D
    None of these

  • The boiling point of 0.1 molal aqueous solution of urea is 100.18 ^(@)C atm. The molal elevation constant of water is

    A
    1.8
    B
    0.18
    C
    18
    D
    18.6

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