When 3.22 g of an unknown compound composed of the elements C, H and O is dissolved in 30.0 g of benzene, the solution freezes at 0.520 °C. Pure benzene freezes at 5.500 °C and has Kf = 5.12 °C/m. The unknown compound contains 65.4% C, 5.50% H and 29.1% O by mass. What is the molecular formula of the compound? none of the answers are correct C4H6O4 C2H3O2 O C6H6O2 O C3H30

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When 3.22 g of an unknown compound composed of the elements C, H and O
is dissolved in 30.0 g of benzene, the solution freezes at 0.520 °C. Pure
benzene freezes at 5.500 °C and has Kf = 5.12 °C/m. The unknown compound
contains 65.4% C, 5.50% H and 29.1% O by mass. What is the molecular
formula of the compound?
none of the answers are correct
C4H604
C2H3O2
C6H,O2
O C3H3O
Transcribed Image Text:When 3.22 g of an unknown compound composed of the elements C, H and O is dissolved in 30.0 g of benzene, the solution freezes at 0.520 °C. Pure benzene freezes at 5.500 °C and has Kf = 5.12 °C/m. The unknown compound contains 65.4% C, 5.50% H and 29.1% O by mass. What is the molecular formula of the compound? none of the answers are correct C4H604 C2H3O2 C6H,O2 O C3H3O
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