Six chemistry problems: Lewis structures, resonance, bond angles, gas laws

[cherryspiky24]

#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 celsius and 2.5 atm.
#5)The formula weight of silver chromate (Ag2CrO4) is ______ amu
#6) The molar volume of gas at STP is _____ L.

 

[Borek]

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