ch101 Test 2 - 4

ch101 Test 2 - 4 - 10(8 each From the following set of...

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Unformatted text preview: 10. (8 each) From the following set of samples, select the one with the least mass and the one with the greatest mass. 31 : 3+1 a) ZmolofNH3 f7 " ' ’ b) 6 x 1023 BH3 molecules -’ f3 _". least greatest c) 2 mol of HF '- E ‘ " “0 ‘j mass mass (1) lmolofN2H4 42?” ‘ {2:7 6) 6 x 1023 C2H2 molecules — 9 h B C 11. a) (3 each) Assuming the octet rule, how many shared pairs should be shown in the Lewis structure for each of the following: 013:2 SP: Q N03l' SP: 4— ”/22; : aw— :92 - 4/9»? 33‘” r “>9 ‘7‘ 4w»; b) (6 each) Draw o_ne Lewis structure of each species in the space below. 'H; -l a: ' 0 W 0. /+; ”a .0 »‘0‘-—13.«-’-B~: 0: ”~55 -, c) (4) IF you haven’t already done so, indicate formal charges on your structures. d) (3 each) Fill in the following table, based on the Lewis structure you drew above: / at central atom —_ number of -— number of -_ -r structures ? 1' no ...
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