SELECT * FROM question_mgmt as q WHERE id=1534 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=57 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

Calculate the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.

Answer:

We know that:

Mass percentage of C6H6

 

 

and we also know that:

Mass percentage of CCl4

Alternatively,

Mass percentage of CCl4= (100 - 15.28)%

= 84.72%


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