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Chemistry question

  • #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.
 

Answers and Replies

  • #2
Borek
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