chemistry

Calculate the pH of an aqueous solution
of 11.5 mg of KOH dissolved in 56 mL of
solution.

  1. 👍 0
  2. 👎 0
  3. 👁 118
asked by susan
  1. mols KOH = grams/molar mass
    Then (KOH) = mols KOH/L solution
    Then (OH^-) = (KOH) since KOH is a strong electrolyte and dissociates completely.
    I would then do pOH = -log(OH^-) and follow with pH + pOH = pKw = 14 and solve for pH.

    1. 👍 0
    2. 👎 0
    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous

    asked by Anonymous on February 10, 2011
  2. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous

    asked by Anonymous on February 10, 2011
  3. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous

    asked by Anonymous on February 10, 2011
  4. Chemistry

    A sample of KHC2O4 weighing 0.5839 g is dissolved in 25 mL of water and an endpoint is reached when 31.99 mL of KOH has been added. Calculate the molarity of the KOH solution. KHC2O4(aq) + KOH(aq) ¨ K2C2O4(aq) + H2O(l) because

    asked by Andrew on January 9, 2008
  5. Chemistry

    If 15.omL of 0.0250 M aqueous H2SO4 is required to neutralize 10.0 mL of aqueous solution of KOH, what is the molarity of the KOH solution?

    asked by Tina on May 23, 2011
  1. chem

    a.)How many moles of NaOH are required to prepare 2.00L od 0.380M solution? answer is 0.760 mole of NaOH (mole/l * 2.00L) b.)What will be the molarity of a solution if 3.50 g of KOH are dissolved in water to make 150.0 mL of

    asked by Angel Locsin on November 30, 2012
  2. chemistry

    Calculate the pH and pOH of each of the following aqueous solutions of strong acd or base: (a) 0.010 M HNO3(aq) (b) ) 1.0 x 10-3M Ba(OH)2(aq) (c) 10.0 mL of 0.22M KOH(aq) after dilution to 250 mL (d) 100 mL aqueous solution

    asked by imelda on September 16, 2014
  3. Chemistry 120

    Calculate the pH of aqueous solution 0.0000019 M KOH

    asked by David Allen on December 15, 2014
  4. SCIENCE

    (aq) means the solution is dissolved in water used as a solvent. (l) means the COMPOUND (not element, usually) is a pure liquid. (g) means gas and (s) means solid. In the equation below, HCl(aq) + NaOH(aq) -->NaCl(aq) + H2O(l)This

    asked by DrBob222 on December 11, 2006
  5. Chemistry

    A volume of 60.0mL of aqueous potassium hydroxide (KOH ) was titrated against a standard solution of sulfuric acid (H 2 SO 4 ). What was the molarity of the KOH solution if 25.7mL of 1.50 M H 2 SO 4 was needed? The equation is

    asked by Sarah on September 26, 2013

More Similar Questions