key3(1) - Name: _ Chemistry 1212K Test III F = 96,500...

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Name: _____________________ Chemistry 1212K Test III F = 96,500 coul/mol or 96,500 J/V(mol) R = 8.314 J/mol(K) Questions (5 points each, SHOW ALL WORK ON THE TEST) 1. In a titration experiement it was found that 15.38 mL of 0.139 M NaOH was required to neutralize a 25.00 mL sample of HCl. What is the molarity of the HCl solution? M M L M L M V M V M a a b b b a 0855 . 0 ) 01538 . 0 ( 139 . 0 ) 02500 . 0 ( = = = 2. What is the molar solubility of Mg(C 2 O 4 )? (K sp of Mg(C 2 O 4 ) is 8.6 x 10 -5 ) s x s s x O C Mg K sp = = = - - - + 3 5 2 4 2 2 10 3 . 9 ] ][ [ 10 6 . 8 ] ][ [ 3. Write the solubility constant (K sp ) expression for Silver Sulfide (Ag 2 S). ] ][ [ 2 - + = S Ag K sp 4. Determine the K sp for Mg(OH) 2 where the solubility of Mg(OH) 2 is 1.4 x 10 -4 M. 11 2 4 4 2 2 2 10 1 . 1 )] 10 4 . 1 ( 2 ][ 10 4 . 1 [ ] 2 ][ [ ] ][ [ - - - - + = = = = x x x s s K OH Mg K sp sp 5. Of the following compounds, AgCl, PbCl 2 , and Hg 2 Cl 2 , which dissolves in 6 M NH 3 by forming complexes? AgCl
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key3(1) - Name: _ Chemistry 1212K Test III F = 96,500...

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