Question

In: Chemistry

Calculate the pH, pOH, [H3O+], and [OH-] of the following solutions: (a) 0.001 M HNO3, (b)...

Calculate the pH, pOH, [H3O+], and [OH-] of the following solutions:
(a) 0.001 M HNO3,
(b) 0.3 M Ca(OH)2;
(c) 3.0 M HNO3,
(d) 6.0 M NaOH,
(e) 0.05 M HBr

Solutions

Expert Solution

(a) 0.001 M HNO3

HNO3 is strong acid

                   HNO3 + H2O--------> H3O+   + NO3-

                   0.001M                     0.001M

                  [OH-] = Kw/[H3O+]

                              = 1*10-14/0.001 = 10-11 M

                     PH    = -log[H3O+]

                               = -log0.001 = 3
(b) 0.3 M Ca(OH)2

                         Ca(OH)2 ---------> Ca+2 + 2OH-

                          0.3M                                   2*0.3 = 0.6M

                           [OH-]   = 0.6M

                           [H3O+]   = Kw/[OH-]

                                          = 1*10-14/0.6   = 1.67*10-14 M

                                PH   = -log1.67*10-14   = 13.7772
(c) 3.0 M HNO3

                      HNO3 + H2O---------> H3O+ + NO3-

                        3M                3M

                    [H3O+]   = 3M

                    [OH-]   = Kw/[H3O+]

                                 = 1*10-14/3 = 3.4*10-15 M

                     PH   = -log[H3O+]

                              = -log3   = -0.4471
(d) 6.0 M NaOH,

              NaOH   -------> Na+ + OH-

                6M                            6M

               [OH-]    = 6M

              [H3O+]   = Kw/[OH-]

                             = 1*10-14 /6    = 1.7*10-15 M

                PH   = -log[H3O+]

                         = -log1.7*10-15

                         = 14.7695
(e) 0.05 M HBr

                     HBr ----------> H+ + Br-

                   0.05M             0.05M

                  [H+]   = 0.05M

                    [OH-]   = Kw/[H3O+]

                                 = 1*10-14 /0.05   = 2*10-12 M

                    PH = -log[H3O+]

                           = -log0.05 = 1.3010

queen_honey_blossom answered 2 years ago
Next > < Previous

Related Solutions

1.Determine the pH and pOH for each of the following solutions: [OH−] = 1.6×10−7 M [H3O+]...
1.Determine the pH and pOH for each of the following solutions: [OH−] = 1.6×10−7 M [H3O+] = 4.5×10−4 M [H3O+] = 2.0×10−4 M [OH−] = 7.5×10−9 M 2.Acetic acid has a Ka of 1.8×10−5 What is the pH of a buffer solution containing 0.20 M HC2H3O2 (acetic acid) and 0.20 M C2H3O2−? 3. A volume of 40.0 mL of a 0.850 M HNO3 solution is titrated with 0.780 M KOH. Calculate the volume of KOH required to reach the equivalence...
For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH. 1. 6.77×10−3 M...
For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH. 1. 6.77×10−3 M LiOH, 2. 0.0412 M Ba(OH)2 3. 5.9×10−4 M KOH 4. 3.0×10−4 M Ca(OH)2
Calculate the pH and pOH for the following solutions: a) 0.0450 M NaOH b) 0.160 M...
Calculate the pH and pOH for the following solutions: a) 0.0450 M NaOH b) 0.160 M Ca(OH)2 c) a 1:1 mixture of 0.0125 M HCl and 0.0125 M Ca(OH)2 d) a 2:3 mixture of 0.0125 M HNO3 and 0.0125 M KOH
For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH. Part A 0.20...
For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH. Part A 0.20 M NaOH Express your answer using two significant figures. Enter your answers numerically separated by commas. [OH−], [H3O+]= ______________ M Part B Express your answer to two decimal places. Enter your answers numerically separated by commas. pH, pOH= Part C 1.4×10−3 M Ca(OH)2 Express your answer using two significant figures. Enter your answers numerically separated by commas. [OH−], [H3O+]= ____________ M Part D Express...
Calculate [H3O+] and [OH−] for each of the following solutions at 25℃ given the pH.
  Calculate [H3O+] and [OH−] for each of the following solutions at 25℃ given the pH. Part A: pH= 8.60 Express your answer using two significant figures. Enter your answers numerically separated by a comma. Part B: pH = 11.34 Part C: pH = 2.91
Exercise 15.82 For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH. Part...
Exercise 15.82 For each of the following strong base solutions, determine [OH−],[H3O+], pH, and pOH. Part A 8.74×10−3 M LiOH Express your answer using three significant figures. Enter your answers numerically separated by commas. [OH−],[H3O+] = Part B Express your answer to three decimal places. Enter your answers numerically separated by commas. pH,pOH = Part C 1.12×10−2 M Ba(OH)2 Express your answer using three significant figures. Enter your answers numerically separated by commas. [OH−],[H3O+] = Part D Express your answer...
(a) What are [H3O+], [OH -], and pOH in a solution with a pH of 2.49?...
(a) What are [H3O+], [OH -], and pOH in a solution with a pH of 2.49? [H3O]....................... POH......................... PH............................. (b) What are [H3O+], [OH -], and pH in a solution with a pOH of 5.99? [H3O].................... POH...................... PH.........................
2. Calculate [H3O+]total, [OH-]total, [H3O+]water, [OH-]water, the pH and the pOH for a 3.2 x 10-2...
2. Calculate [H3O+]total, [OH-]total, [H3O+]water, [OH-]water, the pH and the pOH for a 3.2 x 10-2 M aqueous solution of perchloric acid, HClO4. Compare your value for [H3O+]water in the perchloric acid solution with the value for [H3O+]water in pure water. Are they the same or different? If they are different, explain why they are different. 3. Calculate [H3O+]total, [OH-]total, [H3O+]water, [OH-]water, [Ca2+]total, the pH and the pOH for a 0.00025 M aqueous solution of calcium hydroxide, Ca(OH)2.
For each strong base solution, determine [H3O+], [OH−], pH, and pOH. A)8.89×10−3 M LiOH [OH−],[H3O+] =...
For each strong base solution, determine [H3O+], [OH−], pH, and pOH. A)8.89×10−3 M LiOH [OH−],[H3O+] = b)8.89×10−3 M LiOH pH,pOH= C)1.15×10−2 M Ba(OH)2 [OH−],[H3O+]= D)1.15×10−2 M Ba(OH)2 pH,pOH = E)1.8×10−4 M KOH [OH−],[H3O+]= F)1.8×10−4 M KOH pH,pOH = G)4.9×10−4 M Ca(OH)2 [OH−],[H3O+] = H)4.9×10−4 M Ca(OH)2 pH,pOH =
Calculate [H3O+] and [OH−] for each of the following solutions at 25 ∘C given the pH....
Calculate [H3O+] and [OH−] for each of the following solutions at 25 ∘C given the pH. Part A.) pH= 8.65 Part B.)  pH= 11.40 Part C.)  pH= 2.94
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT