1 The Correct Iupac Name For Fes Po4 2 Is A Iron Ii Phosphide B Iron Ii Phosphate C Iron Iii Phosphide D Iro 1 (68.64 KiB) Viewed 48 times
1 The Correct Iupac Name For Fes Po4 2 Is A Iron Ii Phosphide B Iron Ii Phosphate C Iron Iii Phosphide D Iro 2 (30.03 KiB) Viewed 48 times
1. The correct IUPAC name for Fes(PO4)2 is (a) iron(II) phosphide (b) iron(II) phosphate (c) iron(III) phosphide (d) iron(III) phosphate 2. Which ion has the smallest radius? (a) 02 (6) Na+ (c) Mg? (d) F 3. Bromine has two naturally occurring isotopes: 79Br (50.69%) and 1Br (49.31%). If the mass of 'Br is determined to be 78.92 amu, what is the mass of 81Br? (a) 79.90 amu (b) 80.85 amu (c) 80.91 amu (d) 81.00 amu 4. An adult human has about 2.60 x 101 red blood cells containing a total of 2.90 g of iron. On average, how many iron atoms are present in a single red blood cell? (a) 7.0 x 109 (b) 1.2 x 10' (c) 1.0 x 101 (d) 3.1 x 1022 5. What is the ground state electronic configuration of the S2-ion? (a) 1s22s22p63s24p6 (b) 1s22s22p63823p6 (c) 1922s22p63823p5 (d) 1822s23p64525p6 (e) 1s22s2p63s2p6 6. What volume (in L) of hydrogen gas, measure 35'C and 720 mm Hg, is required to produce 475 g of NH3? 3 H2(g) + N2(g) 2 NH3(g) (a) 41.8L (b) 129L (C) 747 L (d) 1120 L 7. Choose the best Lewis structure for Xel2 (a) 1-Xe-l: (b) =Xem: (%) (b) =ắc m (6) T-Xe-() I-xe- (e) 1=Xe=Ỉ: i: 1 d 8. Which is a polar molecule? (a) CF4 (b) ICI (c) Oz (d) SO3
9. What is the hybridization of sulfur in SF2? (a) sp2 (b) sp (c) spd (d) sp?d? 10. Determine the number of protons, neutrons and electrons in the following: 65 29* (a)p+ = 36 nº = 29 e- = 36 (c) pt = 36 n° = 36 e- = 29 (e)p+ = 29 n = 36 e- = 36 (b)p+ = 29 nº = 29 (d) p+ = 29 nº = 36 er = 36 e = 29 11. When 50.0 g of N204 and 47.5 g of N2Ha react, 30.0 g of N are collected. What is the percent yield? N204(0) + 2N2H (1) - 3 N2(g) + 4H2O(1) + (a) 65.7% (b) 48.2% (c) 31.3% (d) 16.9%
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