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What is the overall charge of the Platinum(IV) complex [PtCl2(en)]? a. -1 b. +2 c. 0 d. +4 e. -2   Tables.pdf Periodic Table with New Elements.pdf

Suppose that the reaction: C → products is second order in C and has a rate constant k = 8.76 x 10-3 M-1 . min-1  First write the rate equation,  and then answer the following question. At what [C] will the rate equal 1.11 x 10-5 M . min-1 ? a. 1.3 x 10 -3 M b. 9.7 x 10 -8 M c. 3.1 x 10 -4 M d. 3.6 x 10 -2 M e. 0.40 M   Tables.pdf Periodic Table with New Elements.pdf

Write the correct dissolving equation for Ag2CO3 (s) on scratch paper, and then answer the following question. Will a ppt of Ag2CO3 (s) form if you mix 8.4 x 10-4 M Ag+ (aq) with 3.3 x 10-5 M CO3 -2 (aq)?  Which of the following is entirely correct? a.  Q= 5.5 x 10-8, ppt forms b.  Q= 2.3 x 10-11, no ppt c.  Q= 2.3 x 10-11, ppt forms d.  Q = 2.7 x 10-8, ppt forms e. Q = 2.7 x 10-8, no ppt

If [H+] = 6.2 x 10-9 M, what is [OH-]?   a. 1.6 x 10-6 M a. 16.2 x 105 M a. 6.2 x 10-23 M a. 1.6 x 10-24 M a. 7.8 x 10-9 M

What is the correct formula for Manganese(II) acetate? a. Mn2C2H3O2 b. MnC2O4 c. Mn(C2H3O2)2 d. Mn(HC2H3O2)2 e. MnC2H3O2

What is the correct formula for Lead(II) phosphate? a. Pb2PO4 b. Pb3(PO4)2 c. Pb4(PO)2 d. Pb3P2 e. Pb2(PO4)3

What is [H+ ] when pH = 6.2?   a.   6.3 X 10-7 M b.  1.6 X 106 M c. 1.6 X 10-8 M d. 1.6 X 10-15 M e.  7.8 M  

Suppose the following reaction is at equilibrium:

Which of the following is a weak acid? a. Sr(OH)2 b. NH3 c. HF d. HNO3 e. HClO4

What is the % ionization of 1.17 M NH3 (aq) from the previous problem?   a. 0.00392 % b. 0.536 % c. 0.392 % d. 0.00246 % e. 0.00180 %