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Textbook Expert
Textbook ExpertVerified Tutor
18 Nov 2021

Given information

Mass of first sample is

Mass of   is

Mass of  is

Mass of second sample is

Mass of is

Mass of third sample is

Mass of is

Step-by-step explanation

Step 1.

Mass of first sample is .

Formula mass is defined as the sum of the average atomic masses of all the atoms present in the chemical formula of any compound.

Therefore,

Molar mass of is.

Molar mass of water is.

Calculate number of moles

 

Where,

  •  is the number of moles.

  •  is the given mass of compound.

  •   is the molar mass of compound

Put the value of molar mass in above formula.

The number of moles for   is,

 

     

     

The number of moles for  water is,

 

     

     

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