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Calculate the mass of a non-volatile sol...

Calculate the mass of a non-volatile solute ( molar mass 40g `mol^-1`) which should be dissolved in 114g octane to reduce its vapour pressure to 80%.

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Calculate the mass of a non volatile solute (molar mass 40gmol^-1) which should be dissolved in 114 g octane to reduce its vapour pressure to 8%.

Calculate the mass of non-volatile solute (molecular mass = 40), which should be dissolved in 114 g octane to reduce its vapour pressure to 80%.

Knowledge Check

  • Calculate mass of 2.7moles of C_(12)H_(22)O_(11) (molar mass = 342 g/ mol)

    A
    0
    B
    `+2`
    C
    `+6`
    D
    `-6`

  • 1 g of non - electrolyte solute (molar mass 250 g/mol) was dissolved in 5.12g of benzene. If the freezing point of depression constant, k_f of benzene is 5.12 K kg/mol, the freezing point of benzene will be lowered by

    A
    0.3 K
    B
    0.5 K
    C
    0.2 K
    D
    0.4 K

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    Caculate the mass of a compound (molar mass=256g mol^-1) to be dissolved in 75g of benzene to lower its freezing point by 0.48K (K_f=5.12 K kg mol^-1)

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    2.1 g of non-electrolyte solute (molar mass 250 g/mol) was dissolved in 5.12 g of benzene. If the freezing point of depression constant, k_f of benzene is 5.12 K kg/mol, Calculate the freezing point of benzene.

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