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Grade: 12
        
                The percent composition by mass of oxygen in BaSO4 is
  1. 233.4%
  2. 66.7%
  3. 27.4%
  4. 58.7%
  5. 13.7%
one year ago

Answers : (2)

Arun
24483 Points
							
Molar mass of BaSO4 = 233.3896 g/mol
 
hence percentage of oxygen = 64/ 233.3896 = 0.274 * 100 = 27.41%
 
hopeit helps
 
Regards
Arun
 
one year ago
Shivangi Khatter
askIITians Faculty
468 Points
							dear student
the correct answer is(C)
Molecular weight of BaSO4 = 233.43
Percentage composition by mass of oxygen = 4 *16 *100/233.43 = 27.4%
one year ago
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