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The percent composition by mass of oxygen in BaSO4 is 233.4% 66.7% 27.4% 58.7% 13.7%

shefali , 5 Years ago
Grade 12
anser 2 Answers
Arun

Last Activity: 5 Years ago

Molar mass of BaSO4 = 233.3896 g/mol
 
hence percentage of oxygen = 64/ 233.3896 = 0.274 * 100 = 27.41%
 
hopeit helps
 
Regards
Arun
 

Shivangi Khatter

Last Activity: 5 Years ago

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%

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