Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days
8104911739
For Business Enquiry

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Ask Solutions question free ×

Queries asked on Sunday and after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.

  • CBSE×
  • Class 12 Science×
  • Chemistry×
  • Solutions×

Solutions Free Doubts and Solutions

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

CBSE - XII Science - Chemistry - Solutions

Please provide the answer to this question.

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

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

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
Answered by Expert

Answer this question

×
Your answer has been posted successfully!

Latest Questions

Chat with us on WhatsApp