a. 0.180 M sodium chloroacetate (Ka (CICH₂COOH) = 1.36 × 10 °)? [H₂O+]-[ = M -3 b. 3.90 × 10-³ M aniline hydrochloride (Kü (C6H5NH₂) = 3.98 × 10−¹⁰ )? [H₂O+] =[ c. 0.210 M HIO3 (K₁ (HIO3) = 0.17)? [H₂O+]=[ M M

Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That is, fill in any missing entries in the second and third columns. Be sure each entry you write includes the correct number of significant digits. [1,0'] solution pH x10 11 A 5.9 X 10 mol/L В ||mol/L 2.25 7 2.0 x 10 mol/L

Oxygen (O2) is necessary for cellular respiration; it must be transported from the lungs to tissues through the bloodstream. However, O2 is not very soluble in water. The Keq of oxygen dissolving at 300.0 K is 7.64 x 10-4 and the Keq at 320.0 K is 5.23 x 10-ª. Calculate the AH(dissolve) for oxygen solubility in water, in kJ/ mol. kJ/mol 1 3 4 C 7 8 +/- х 100 2. LO

5. What amount of solid NaOH must be added to 1.0 L of a 0.12 M H2CO3 solution to produce a solution with [H+]= 3.1x10-11 M ? There is no significant volume change as the result of the addition of the solid.

What is [H3O+ ] (in M) in a solution of 0.063 M HCNO and 0.035 M NaCNO? (Assume Kw = 1.01 ✕ 10−14.) HCNO(aq) + H2O(l)  H3O+(aq) + CNO−(aq) Ka = 3.5 ✕ 10−4

Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That is, fill in any missing entries in the second and third columns. Be sure each entry you write includes the correct number of significant digits. [1,0"] solution pH x10 olo -8 A 1.5 X 10 mol/L Ar В ||mol/L 2.24 - 11 mol/L 2.1 X 10 C

Consider the reaction of 66.5 mL of 0.310 M NaC₇H₅O₂ with 50.0 mL of 0.245 M HBr. (Ka of HC₇H₅O₂ = 6.3 x 10⁻⁵) a)Write the net ionic equation for the reaction that takes place. (In terms of C, H2O, H3O+, O, H, H+, OH-) b) How many moles of C7H5O2- would be present before the reaction takes place? c) How many moles of H+ would be present before the reaction takes place? d)What species would be left in the beaker after the reaction goes to completion? e) How many moles of C7H5O2- would be left in the beaker after the reaction goes to completion? f) How many moles of HC7H5O2 would have been produced after the reaction goes to completion? g) What would be the pH of this soultion after the reaction goes to completion?

The weak acid, chloroacetic acid, is a useful reagent in organic synthesis owing to a reactive C-CI bond. It has a K. =1.40x103.

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+ In an aqueous solution at 25 °C, if [H₂O*] = 1.1 × 104 M, then [OH-] is: 1 4 7 +/- 2 5 8 | M 3 6 9 0 X C x 100