00 OCH 15) A solution is created by dissolving 0.907 moles of HCI (a strong acid)...
15) A solution is created by dissolving 0.907 moles of HCI (a strong acid) into water, making 13.9 Liters of solution. Calculate the [H*) and the pH of this solution: (5) 16) What is the [H"] of an acid sample that has a pH of 0.230? نما 17) What is the pH of an aqueous 0.305 M KOH solution (a strong base)? 18) What is the (OH) of a bleach sample that registers 11.41 on a pH meter? (4)
A buffer is prepared by dissolving 0.0750 moles of a hypothetical weak acid (Ka = 6.0x10^-6) in water. A solution of sodium hydroxide is then added to the acid. When the total volume of the solution was 1.00 liters, the pH of the solution was measured to be 5.30. How many moles of NaOH were added?
Calculate the pH of a solution prepared by dissolving 0.876 moles of carbonic acid (H2CO3) and 0.543 moles of sodium hydrogen carbonate (NaHCO3) in water sufficient to yield 1.00 L of solution. The Ka of carbonic acid is 4.5x10^-7. Explain answer please
A solution is prepared by dissolving 0.23 moles of chloroacetic acid and 0.27 moles of sodium chloroacetate in water sufficient to yield 1.00L of solution. The addition of 0.05 mole of HCl to this buffer solution causes the pH to drop slightly. The pH does not decrease drastically because the HCl reacts with the.........present in the buffer solution. The Ka of chloroacetic acid is 1.36*10^-3.
(10 pts) A solution is prepared by dissolving 1.239 grams of hydrochloric acid, HCI, in enough water to make 250.0 mL of solution. A 25.00 mL sample of this solution is diluted with water to a final volume of 100.0 mL. Now, you take 10.00 mL of that solution and dilute it to 100.00 mL What is the molarity of the final solution? (HCI 36.45 g/mol)
QUESTION 14 Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.230 mol of sodium formate (NaCO2H) in water sufficient to yield 1.00 L of solution. The Ka of formic acid is 1.77X104 Enter your answer with three decimal places.
Calculate the pH of a solution prepared by dissolving 0.370 mol of formic acid HCOOH and 0.230 mol of sodium formate HCOONa in water sufficient to yield 1.00 L of solution. The Ka of formic acid is 1.77x10. -4 Seleccione una: a. 10.463 b. 2.307 O O c. 2.099 d. 3.546 e. 3.952
A solution is prepared by dissolving 0.23 mol of formic acid and 0.27 mol of sodium formate in water sufficient to yield 1.00 L of solution. The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The K, of formic acid is 1.8 x 10+ A formic acid B. sodium formate C water D. sodium E....
An acid-base equilibrium system is created by dissolving 0.50 mol CH3CO2H in water to a volume of 1.0 L. What is the effect of adding 0.50 mol CH3CO2–(aq) to this solution? 1. The pH of the solution will equal 7.00 because equal concentrations of a weak acid and its conjugate base are present. 2. Some CH3CO2H(aq) will ionize, increasing the concentration of CH3CO2–(aq) and increasing the concentration of H+. 3. Some CH3CO2–(aq) will react with H+, increasing the concentration of...
A solution was prepared by dissolving 0.200 moles of sodium hypoch lorite (NaClO) in water to a final volume of 1.00 Liter. Ka 2.96x10 for hypochlorous acid (HCIO). Show equations and work steps for these calculations. 1) Calculate Kb of sodium hypochlorite. 2) Calculate the pH of the NaClO solution. 3) Calculate the pH if 10.0 mL of 1.00 M HCl is added to 100.0 mL of the original NACIO solution. 4) Calculate the pH if 20.0 mL of 1.00...