(Answered) 1 for which of the following compounds is the term

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1) For which of the following compounds is the term molecular mass better suited than the term formula mass?
i. F2,ii. CaO, iii.NH3,iv.NaOH,v.CH3OH

2)Which of the following are not empirical formulas?
i.C2H8,ii.C2H3,iii.C6H6,iv.C7H6,v.C7H21

3)Which of the following has a linear electron pair geometry?
i. IO2-,ii.H2S,iii.BeF2,iv.ICI2+

4)Argon fills an 8.40 liter container at 9.20 X 10^3 torr and 18degrees celcius. How many moles of argon are in the container?
A. 4.26mol
B.2.35 mol
C.6.88 mol
D.323mol

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