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4. What are the first two quantum numbers for the electrons located in subshell 4d?
5. What are the first three quantum numbers for the electrons located in subshell 2s?
6. How many electrons can be held in a sublevel l = 3?
7. How many electrons can be held in the energy level n = 4?
8. How many electrons in an atom can share the quantum numbers n = 4 and l = 3?
Expt. [ S2O8 raised to 2- ] [I raised to negative] Initial Rate
1. 0.036 0.060 1.5 × 10 raised to negative 5
2. 0.072 0.060 2.9 × 10 raised to negative 5
3. 0.036 0.0120 2.9 × 10 raised to negative 5

S2O8 raised to 2- (aq) + 3I raised to negative (aq) yields 2SO4 raised to 2- (aq) + I3 raised to negative (aq)

A. Determine the order of the reactions and write each reactant. Write the rate law for the above reaction.
B. Calculate the rate constatnt, k, and give its appropriate units.
C. Calculate reaction rate when each reactant concentration is 0.20 M.

An experiment requires a solution which is 98 mM glucose and 7 mM MgSO4. You have distilled water, a 3.4 M stock solution of glucose, and a 0.43 M MgSO4 stock solution in a lab. The experiment requires 10 ml of the solution in a test tube.

(a) What volume of the stock glucose solution do you need in the test tube?

(b) What volume of stock MgSO4 solution do you need in the test tube?
a. Calculate K_sp of Ag_2 CrO_4. Organize your answer so that your solution is logical. Make sure that your K_sp has correct significant figures.From the experiment CU = 0.00016 mol. Also 〖Ag〗_2 〖CrO〗_4 = 0.0016 mol

b) Calculate percentage error. Ag2CrO4 arrows 2Ag+ + CrO42-
how many moles are in 28 grams of Na2SO3

The equilibrium constant for the formation of Cu (CN) 42- is 2.0 x 1030. Calculate the value of pCu2 +, ie -log [Cu2 +], if 2.24 g of CuCl2 are dissolved in 1000 L of a 0.910 M solution. NaCN. The addition of CuCl2 does not affect the volume (the final volume is always 1,000 L).
The solubility product of Cu (OH)2 is 4.8 x 10-20. Calculate the value of pCu2 +, ie -log [Cu2 +], in an aqueous solution of NaOH which has a pH of 12.68 and which is saturated with Cu (OH) 2.
The solubility product, Ks, of Cd3 (PO4) 2 and 2.5 x 10-33. What is the solubility (in g / L) of Cd3 (PO4) 2 in pure water?
Determine the pH change when 0.091 mol HCl is added to 1.00 L of a buffer solution that is 0.488 M in CH3COOH and 0.310 M in CH3COO-.

pH after addition − pH before addition = pH change =
when 1.10 g of magnesium reacts with 300.0mL of 0.800 M HCL,the products are hydrogen gas and magnesium chloride . 2HCL + Mg a MgCl2 +H2
a) Determine the moles of hydrogen gas produced(assume Mg is limiting reagent)
b) Determine the moles of hydrogen gas at STP
C) The reaction, was actually carried out at room temperature,25.0 C.What was the volume of hydrogen gas produced under these conditions?
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