Mole ConceptHard
Question
When 200 g of an oleum sample labelled as 109% is mixed with 300 g of another oleum sample labelled as 118%, the new labelling of resulting oleum sample becomes
Options
A.114.4%
B.112.6%
C.113.5%
D.127%
Solution
200 × 109 + 300 × 118 = 500 × x ⇒ x = 114.4
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