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5) 96 mg ofsolid KOH was completely dissolved in 3.5 L ofpure water. What is the...
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the...
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the molarity of this solution? Molarity of first solution: Enter your answer here M KOH If we then add an additional 2.750 L of water to the solution what is the new molarity? Molarity of second solution: Enter your answer here M KOH For this second solution calculate the pH, pOH and [H3O+). pH = Enter your answer here pOH = Enter your answer here...
please also calculate pH, pOH, and [H3O+] 11.5 g of KOH (s) is dissolved up to...
please also calculate pH, pOH, and [H3O+]
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the molarity of this solution? Molarity of first solution: Enter your answer here M KOH If we then add an additional 2.750 L of water to the solution what is the new molarity? Molarity of second solution: Enter your answer hace M KOH For this second solution calculate the pH, POH and [H3O+]
please help!! thank you 11.5 g of KOH (s) is dissolved up to 250.0 mL in...
please help!! thank you
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the molarity of this solution? Molarity of first solution: Enter your answer here M KOH If we then add an additional 2.750 L of water to the solution what is the new molarity? Molarity of second solution: Enter your answer here M KOH For this second solution calculate the pH, pOH and [H3O+). pH = Enter your answer here pOH =...
What is the concentration (in mg/L) of dissolved O, in blood (or water) at this partial...
What is the concentration (in mg/L) of dissolved O, in blood (or water) at this partial pressure and a normal body temperature of 37°C? The solubility of O2 in water at 37°C and 1atm partial pressure is 1.93 x 10 mol/L Express your answer using two significant figures. O AXO ? 0] mg/L Submit Request Answer
Could someone answer the following questions? 1) 11.2 g of potassium hydroxide (KOH) is dissolved in...
Could someone answer the following questions? 1) 11.2 g of potassium hydroxide (KOH) is dissolved in sufficient water to make 1 L of solution. What is the concentration of KOH in the solution? a. 0.02 mol/L b. 0.1 mol/L c. 0.2 mol/L d. 0.01 mol/L 2) If the solution is neutral, which of the following must be true? a. [OH-] = [H2O] b. [H+] > [OH-] c. [H+] < [OH-] d. [H+] = [OH-] 3)A student titrates 0.5222 grams of...
4. When 0.100 mol ammonia is dissolved in water to make a 500 mL solution, the...
4. When 0.100 mol ammonia is dissolved in water to make a 500 mL solution, the following equilibrium is established NH3(aq) + H2O(0) - NH. (aq) + OH(aq) K = 1.8 x 10-5 a. Find the concentration of OH' and the pH of the solution at equilibrium. Remember: pOH = -log(OH) and pH + pOH = 14 b. Consider the following reaction: 2H2O(1) 2 H,0*(aq) + OH(aq) K = 1.0 x 10-14 Write the equilibrium expression and find the value...
Ca(OH)2 is added to water to reach a concentration of 53 mg/L. Initially, the water had 3.09 mg/L of Mg2+ and it reacts...
Ca(OH)2 is added to water to reach a concentration of
53 mg/L. Initially, the water had 3.09 mg/L of Mg2+ and
it reacts with Ca(OH)2 according to equation 61a. Assume
SO4-2 is in excess. What are the final
dissolved Ca2+and Mg 2+ concentrations? What
is the initial and final hardness? What is the Mg(OH)2
precipitate concentration? (28.6 mg/L, 0 mg/L, 12.5 mg CaCO3/L,
71.5 mg CaCO3 /L, 7.28 mg/L).
Precipitation of noncarbonate Mg, leaving Ca from lime in solution. Mf+...
7.00×10−3 mol of HBr are dissolved in water to make 15.0 L of solution. What is...
7.00×10−3 mol of HBr are dissolved in water to make 15.0 L of solution. What is the concentration of hydroxide ions, [OH−], in this solution?
Part A 9.00×10−3 mol of HBr are dissolved in water to make 11.0 L of solution....
Part A 9.00×10−3 mol of HBr are dissolved in water to make 11.0 L of solution. What is the concentration of hydroxide ions, [OH−], in this solution? Express your answer with the appropriate units.
1.) 4.00 g of NaOH are dissolved in water to make 5.00 L of solution. What...
1.) 4.00 g of NaOH are dissolved in water to make 5.00 L of solution. What is the concentration of hydronium ions, [H3O+], in this solution? Express your answer with the appropriate units. 2.) If you wanted to determine how much KOH (potassium hydroxide; a strong base) was dissolved in water, you could titrate it with a known amount of KHP (potassium hydrogen phthalate; a weak acid) until a color change indicates that the base is completely neutralized. The molecular...
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the molarity of this solution? Molarity of first solution: Enter your answer here M KOH If we then add an additional 2.750 L of water to the solution what is the new molarity? Molarity of second solution: Enter your answer here M KOH For this second solution calculate the pH, pOH and [H3O+). pH = Enter your answer here pOH = Enter your answer here...
please also calculate pH, pOH, and [H3O+]
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the molarity of this solution? Molarity of first solution: Enter your answer here M KOH If we then add an additional 2.750 L of water to the solution what is the new molarity? Molarity of second solution: Enter your answer hace M KOH For this second solution calculate the pH, POH and [H3O+]
please help!! thank you
11.5 g of KOH (s) is dissolved up to 250.0 mL in water. What is the molarity of this solution? Molarity of first solution: Enter your answer here M KOH If we then add an additional 2.750 L of water to the solution what is the new molarity? Molarity of second solution: Enter your answer here M KOH For this second solution calculate the pH, pOH and [H3O+). pH = Enter your answer here pOH =...
What is the concentration (in mg/L) of dissolved O, in blood (or water) at this partial pressure and a normal body temperature of 37°C? The solubility of O2 in water at 37°C and 1atm partial pressure is 1.93 x 10 mol/L Express your answer using two significant figures. O AXO ? 0] mg/L Submit Request Answer
4. When 0.100 mol ammonia is dissolved in water to make a 500 mL solution, the following equilibrium is established NH3(aq) + H2O(0) - NH. (aq) + OH(aq) K = 1.8 x 10-5 a. Find the concentration of OH' and the pH of the solution at equilibrium. Remember: pOH = -log(OH) and pH + pOH = 14 b. Consider the following reaction: 2H2O(1) 2 H,0*(aq) + OH(aq) K = 1.0 x 10-14 Write the equilibrium expression and find the value...
Ca(OH)2 is added to water to reach a concentration of
53 mg/L. Initially, the water had 3.09 mg/L of Mg2+ and
it reacts with Ca(OH)2 according to equation 61a. Assume
SO4-2 is in excess. What are the final
dissolved Ca2+and Mg 2+ concentrations? What
is the initial and final hardness? What is the Mg(OH)2
precipitate concentration? (28.6 mg/L, 0 mg/L, 12.5 mg CaCO3/L,
71.5 mg CaCO3 /L, 7.28 mg/L).
Precipitation of noncarbonate Mg, leaving Ca from lime in solution. Mf+...
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