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An queous solution of an acid is so wea...

An queous solution of an acid is so weak that it can be assumed to be prectically unionised, boiled at `100.4^(@)C` 25 ml of this solution was neurtrased by 38.5 ml of 1 N solution of NaOH. Calculate basicity of the acid if `k_(b)(H_(2)O)=0.52" k mol"^(-1)" kg"`. Assume molality is equal to malarity.

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The correct Answer is:
`0.03= "weight of Hb in mg"xx10//100`
weight of Hb in mg `=0.30`
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An aqueous solution of an acid is so weak that it can be assumed to be practically unionised, boiled at 100.4^(circ)C . 25 mL of this solution was neutralised by 38.5 mL of 1N solution of NaOH . Calculate basicity of the acid if K_(b) for water is 0.52 K mol^(-1) kg . Assume molality equal to molarity.

0.84 g of a acid (mol wt. 150) was dissolved in water and the volume was made up to 100 ml. 25 ml of this solution required 28 ml of (N/10) NaOH solution for neutralisation. The equivalent weight and basicity of the acid

0.1 molal aqueous solution of an electrolyte AB_(3) is 90% ionised. The boiling point of the solution at 1 atm is ( K_(b(H_(2)O)) = 0.52 kg " mol"^(-1) )

7.5 g of an acid are dissolved per litre of the solution. 20 mL of this acid solution required 25 mL of N//15 NaOH solution for complete neutralization. Calculate the equivalent mass of the acid.

A 0.1 molal solution of an acid is 4.5% ionized. Calculate freezing point. (molecular weight of the acid is 300 ). K_(f)="1.86 K mol"^(-1)"kg".

A 5 per cent aqueous solution by mass of a non-volatile solute boils at 100.15^(@)C . Calculate the molar mass of the solute. K_(b)=0.52 K kg "mol"^(-1) .

A 0.025 m solution of mono basic acid had a freezing point of 0.06^(@)C . Calculate K_(a) for the acid K_(f) for H_(2)O=1.86^(@) "molality"^(-1) .

2.0 molal aqueous solution of an electrolyte X_(2) Y_(3) is 75% ionised. The boiling point of the solution a 1 atm is ( K_(b(H_(2)O)) = 0.52K kg mol^(-1) )

If 100mL of 0.1M urea solution is mixed with 300mL of 0.2M glucose solution at 300K. Calculate osmotic pressure?

A 0.075 molal solution of monobasic acid has a freezing point of -0.18^(@)C . Calculate K_(a) for the acid , (k_(f)=1.86)

RESONANCE ENGLISH-SOLUTIONS-Advabced Level Problems (PART-2)
  1. An queous solution of an acid is so weak that it can be assumed to be...

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  2. The osmotic pressure of 6% solution of urea at 300 K is

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  3. The osmotic pressure of 6% solution of urea at 273 K is

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  4. The osmotic pressure of 6% solution of urea at 323 K is

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  5. There are two solutions each at 27^(@)C Solution A: contains 6g urea...

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  6. The osmotic pressure of 6% solution of urea at 298 K is

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  7. The osmotic pressure of 6% solution of urea at 258 K is

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  8. The osmotic pressure of 5% solution of urea at 258 K is

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  9. The osmotic pressure of 7% solution of urea at 298 K is

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  10. The osmotic pressure of 8% solution of urea at 300 K is

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  11. The freezing point depression of 0.001 m K(x) [Fe(CN)(6)] is 7.10xx10^...

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  12. Pure water can be obtained from sea water by:

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  13. The osmotic pressure of a solution containing 0.3 mol of solute per li...

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  14. The osmotic pressure of a solution containing 0.4 mol of solute per li...

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  15. An aqueous solution containing 288gm of a non-volatile compound havin...

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  16. The osmotic pressure of a solution containing 0.3 mol of solute per li...

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  17. The osmotic pressure of a solution containing 0.2 mol of solute per li...

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  18. Calculate the boiling point of water at 700mm pressure of Hg. The heat...

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  19. The osmotic pressure of a solution containing 0.1 mol of solute per li...

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  20. An aqueous solution of glucose boils at 100.01^(@)C.The molal elevatio...

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  21. The osmotic pressure of a solution containing 0.2 mol of solute per li...

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