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Textbook Expert
Textbook ExpertVerified Tutor
18 Nov 2021

Given information

The mass percent of the element  is .

The mass percent of the element   is .

The atomic mass of   is twice that of .

 

Step-by-step explanation

Step 1.

The percentage of  and  is given, assuming that the total mass is .

This means that the mass of each element is equal to the given percent.

Therefore, the mass of element is , and for is .

The atomic mass of is twice that of .

Assuming that atomic mass of is .

Therefore, atomic mass of is .

The formula to calculate number of moles is,

 

Where,

  •   is the number of moles.

  •   is the given mass of the compound.

  •   is the molar mass of the compound.

Substitute the value of molar mass in the above formula.

The number of moles for the element  is,

 

       

       

The number of moles for the element   is,

 

         

Therefore, the number of moles for the element is , and for the element is .

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