Dr. Collins PCAT practice problem help

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soonerfan989

New Member
10+ Year Member
What volume of ethane is needed to react with 21L of Oxygen? 2CH6 + 7O2➡ 4CO2 + 6H2O. This is in the section of the law of combining volumes. The answer they got was 6L and I keep getting a different answer. Can someone please help?