Calculate the (H+] in a solution that is 0.784 M in Nax and 0.440 M in...
Calculate the [H+] in a solution that is 0.170 M in NaX and 0.657 M in HX given that the Ka of HX is 4.49⋅10−3. Report your answer in scientific notation to 3 sig figs.
Calculate the [H+] in a solution that is 0.741 M in NaX and 0.252 M in HX given that the Ka of HX is 5.68⋅10−2. Report your answer in scientific notation to 3 sig figs.
Consider the following data: HX H X- + H+ Kg = 3.51 · 10-7 HA H HA- + H+ Kg = 6.41 · 10-5 Calculate the Keg for the following reaction: H_A+X- H HA- + HX Record your answer in scientific notation to 3 sig figs. Preview
A 0.771 M solution of a weak base (B:) is made. The solution has a pH of 11.35. Calculate the Kb of this base. Report your answer in scientific notation with 3 sig figs. Preview
Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.34 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x -0.1) H3PO HO H.PO H3O Kai = 7.5c10-3 Preview Preview Preview H.PO H20 HPo? + H50+ K - 6.2:10 -* Preview Preview HPO H2O...
A 0.645 M solution of a weak base (B:) is made. The solution has a pH of 11.99. Calculate the Kb of this base. Report your answer in scientific notation with 3 sig figs.
1) A 8.65 ⋅ 10-3 M solution of HClO4 is made. -What is the pH of this solution? -What is the pOH of this solution? -What is the [OH-] in the solution? Record this answer in scientific notation using 3 sig figs. 2)A 4.23⋅10-2 M solution of NaOH is made. -What is the pOH of this solution? -What is the pH of this solution? -What is the [H+] in the solution? Record this answer in scientific notation using 3 sig...
A weak monoprotic acid, HA dissociates by 1.300 % and has a pH of 2.15. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs. Preview
Phosphoric acid is triprotic with the step-wise dissociation shown below. A 1.90 M phosphoric acid solution is prepared. Calculate the equilibrium concentrations of the species indicated. Report all answers in scientific notation using 2 sig figs. Rather than use the quadratic equation, you can make assumptions like we do in class (ie if K<<1, then 0.1-x 0.1) НаО + Kal = 7.5x10-3 H2PO Н,О+ НЗРОД Preview Preview Preview НаО + 8 Ka2= 6.2x10 НРО% НаРОД НЗО+ Preview Preview НаО +...
*Remember to submit each part separately to avoid losing your work* A 0.100 M solution of an unknown acid, HA, is 3.87% ionized. Complete the following table, but instead of using the variable x, calculate the number values of each quantity and report these values to the correct number of significant figures. Fill in all of the cells. Include signs in the Change column to indicate a gain or loss of concentration. Do not include any units in your answers,...