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Homework Help: Chemistry question

  1. May 21, 2009 #1
    #1) The Lewis structure of PF3 shows that central phosphorus atom has ___ nonbonding and ___ bonding electron pairs.
    #2) How many equivalent resonance forms can be drawn for CO3^-2? (carbon is the central atom)
    #3) The bond angle in NF3 is slightly less than ___?
    #4) Sample of gas (1.3mol) occupies ____L at 22 Celcius and 2.5 atm.
    #5)The formula weight of silver chromate (Ag2CrO4) is ______ amu
    #6) The molar volume of gas at STP is _____ L.
  2. jcsd
  3. May 21, 2009 #2


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