An aqueous solution contains 0.500 M NaOH at 25.0 °C. The pH of the solution is ________. SHOW YOUR WORK

The concentration of fluoride ions in a saturated solution of barium fluoride is ________ M. The solubility product constant of BaF2 is 1.7 x 10-6  SHOW YOUR WORK

 A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.27M KOH solution. The H3O+ concentration after the addition of 80.0 mL of KOH is ________ M. SHOW YOUR WORK

 A substance that can act as both an acid and as a base is ________.

What is the molar solubility of calcium carbonate ( CaCO3 ) in water? The solubility-product constant for CaCO3 is 4.5 × 10-9 at 25 °C. SHOW YOUR WORK  

 In which of the following aqueous solutions does the weak acid exhibit the lowest percentage ionization? TELL ME HOW YOU KNOW  

Of the following acids, ________ is not a strong acid.

A 50.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The titration curve above was obtained. The concentration of the monoprotic acid is about ________ mol/L. SHOW YOUR WORK

Derive the conditional distribution of Y given X = 1 and compute its value at Y = 3. That is, compute . Show the formula you derived for  on your scratch paper.

Compute the expected time (hours) until both Adam and Ben complete their services from when Cindy’s service begins.