5 Steps to a 5 AP Chemistry 2019
220 ❯ STEP 4. Review the Knowledge You Need to Score High For polyprotic acids, acids that can donate more than one proton, the ...
Equilibrium ❮ 221 The pOH of a solution can also be calculated. It is defined as pOH = - log[OH-]. The pH and the pOH are relate ...
222 ❯ STEP 4. Review the Knowledge You Need to Score High The equilibrium constant expression is called the weak base dissociati ...
Equilibrium ❮ 223 The resultant solution, since strontium acetate is soluble, has 0.200 M Sr^2 + and 0.400 M C 2 H 3 O 2 -. Ions ...
224 ❯ STEP 4. Review the Knowledge You Need to Score High but also interfere with each other. Predictions require a comparison o ...
Equilibrium ❮ 225 There are two ways to solve this problem. == + − =× +− K xx − x [NH][OH] [NH] (3.00 )( ) (2.00 ) b^4 1.81^10 3 ...
226 ❯ STEP 4. Review the Knowledge You Need to Score High Let’s consider a typical titration problem. A 100.0 mL sample of 0.150 ...
Equilibrium ❮ 227 Acid: = 0.150mol 1,000 mL 100.00mL 0.0150mol (This number will be used in all remaining steps.) Base: = 0.300m ...
228 ❯ STEP 4. Review the Knowledge You Need to Score High Since a CA/CB pair is present, this is now a buffer problem, and the H ...
Equilibrium ❮ 229 (^) The strong base will control the pH. [OH-] = 0.0015 mol/0.155 L = 9.7 × 10 -^3 M The stoichiometry part of ...
230 ❯ STEP 4. Review the Knowledge You Need to Score High solids, liquids, and solvents are included in the equilibrium constant ...
Equilibrium ❮ 231 b. 1.00 M Na 2 CrO 4 → 1.00 M CrO 42 - (common ion) + + + xx Ag CrO(s) 2Ag(aq)CrO (aq) 2 1.00 24 4 2– Ksp = ...
232 ❯ STEP 4. Review the Knowledge You Need to Score High The initial amounts—concentrations or pressures—are normally zero for ...
Equilibrium ❮ 233 ❯ Review Questions Use these questions to review the content of this chapter and practice for the AP Chemistry ...
234 ❯ STEP 4. Review the Knowledge You Need to Score High You are given equimolar solutions of each of the following. Which has ...
Equilibrium ❮ 235 CH 4 (g) + CO 2 (g) ^ 2 CO(g) + 2 H 2 (g) A 1.00 L flask is filled with 0.30 mole of CH 4 and 0.40 mole of ...
236 ❯ STEP 4. Review the Knowledge You Need to Score High B—Any acid will have a pH below 7; thus, C and D can be eliminated. A ...
Equilibrium ❮ 237 C—The solubility-product constant expression is Ksp = [Zn^2 + ] [IO 3 - ]^2 = 4 × 10 -^6. This may be rearran ...
238 ❯ STEP 4. Review the Knowledge You Need to Score High D—If there are equal numbers of moles of gas on each side of the equi ...
Equilibrium ❮ 239 ❯ Answer and Explanation (a) Kd = [Cd^2 +][I–]^4 /[CdI 4 2–] Give yourself 1 point for this expression. Using ...
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