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# Solutions Free Doubts and Solutions

## 2g of a substance dissolved in 40g of water produced a depression of 274.5K in the freezing point of water. Calculate the molecular mass of the substance .The molal depression constant for water is 274.85K per molal

Asked by mukundsharma70 5th August 2019, 10:50 PM

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## The vapor pressure of water is 12300 Pa at 27 C. Calculate the vapor pressure of 0.5 M solution of a non dissociating/non associating solute in it.

Asked by lekhakarthikeyan 28th August 2018, 6:29 AM

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## Calcualte the mass of a non volatile solute X that should be dissolved in 180g of water to reduce its vapor pressure to 60% where the molar mass of X is 60g/mol.

Asked by lekhakarthikeyan 28th August 2018, 6:27 AM

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### CBSE - XII Science - Chemistry - Solutions

Asked by banga71 19th May 2017, 9:49 AM

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## Can you please explain how to calculate e^22.6 = 7 x 10^9 ? Please reply as soon as possible.

Asked by vidyuti.varma 6th July 2016, 4:36 PM

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### CBSE - XII Science - Chemistry - Solutions

Asked by vidyuti.varma 6th July 2016, 12:52 AM

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## Is the answer change in case of other solvent of different density

Asked by saxena 23rd April 2016, 12:18 PM

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## Dear Sir, I apologize for asking this type of question . Actually in some numerical we neglect the no of moles of solute in the denominator. And some cases we add the no of moles of solute in the denominator. I need to know when do we take it like that.

Asked by Gishin Rajan 22nd February 2016, 8:07 AM

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## An electolyte AB is 50% ionised in aqeous solution. Calculate the freezing point of 1m aqeous solution.

Asked by Navya Benny 24th July 2015, 5:52 AM

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