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CBSE - XII Science - Chemistry - 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
CBSE - XII Science - Chemistry - Solutions
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
CBSE - XII Science - Chemistry - Solutions
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
CBSE - XII Science - Chemistry - Solutions
sir/madam, the final answer is incorrect .The answer is 359.92
Asked by banga71
19th May 2017,
9:49 AM
CBSE - XII Science - Chemistry - Solutions
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
CBSE - XII Science - Chemistry - Solutions
Please provide the answer to this question.
Asked by vidyuti.varma
6th July 2016,
12:52 AM
CBSE - XII Science - Chemistry - Solutions
Is the answer change in case of other solvent of different density
Asked by saxena
23rd April 2016,
12:18 PM
CBSE - XII Science - Chemistry - Solutions
A solution of NaOH is prepared by dissolving 1.6g of NaOH in 500cm^3 of water. Calculate molarity of the solution. Please explain in dip.
Asked by aadeshpdabre
21st March 2016,
4:47 PM
CBSE - XII Science - Chemistry - Solutions
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
CBSE - XII Science - Chemistry - Solutions
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
