chemistry

The pH of saturated Sr(OH)2 (aq) is found to be 13.12. A 10.0 mL sample of saturated Sr(OH)2 (aq) is diluted to 250.0 mL in a volumetric flask. A 10.0 mL sample of the diluted Sr(OH)2 (aq) is transferred to a beaker, and some water is added. The resulting solution requires 26.4 mL of a HCl solution for its titration.

What is the molarity of this HCl solution?

  1. 👍
  2. 👎
  3. 👁
  1. You know pH, I would convert to pOH, then to (OH^-). That will be (OH^-) = ?? moles/L of solution. You take 10.00 mL of that and dilute to 250 mL; therefore, the new (OH^-) = ?? moles/L x 10/250 = xx moles/L= xx M of the solution to be titrated.
    Then titration is
    mL acid x M acid = mL base x M base

    Check my thinking. I did NOT correct for the 2OH^- in Sr(OH)2 since we always worked directly with pH, pOH, etc., and never converted to molarity Sr(OH)2

    1. 👍
    2. 👎
  2. 9.987*10^-4

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    A 500.0 mL sample of saturated nickel(II) phosphate solution was analyzed spectrophotometrically and found to contain 1.88 × 10-5 g of nickel. (a) Determine the molarity of the nickel(II) phosphate solution. (b) Calculate the

  2. Chemistry

    Caffeine C8H10N4O2, is a stimulant found in a tea and coffee. A sample of the substance was dissolved in 45.0g of choloroform CHCl3 to give a 0.0946m solution. How many grams of caffine were in the sample. m = molality

  3. Chemistry

    A 2.764 g sample containing only iron and aluminum metal was treated with acid to form Al(+3) and Fe(+2). The sample was then titrated with a potassium dichromate solution (only the Fe(II) will react with the dichromate). The

  4. Science

    A scientist observed two rock samples. Sample A was found in the bottom of a dried-up lake and contained fossils. Sample B was found near a volcano and was glassy in appearance. Which statement is MOST LIKELY correct? A. Sample A

  1. science

    A 3L sample of paint that has a density of 5 g/ml is found to contain 10% by mass Pb3N2(s). How many grams of lead were in the paint sample?

  2. Chemistry

    1.33dm³ of water at 70°c are saturated by 2.25moles of Pb(NO3)2, and 1.33dm³ of water at 18°c are saturated by 0.53mole of the same salt. If 4.50dm³ of the saturated solution are cooled from 70°c to 18°c.calculate the

  3. chemistry

    A sample of oxygen at 24.0 degrees celcius and 99.3 kpa was found to have a volume of 455 ml. How many grams of O2 were in the sample?

  4. statistics

    samples of size n=900 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the proportion of numbers greater than 5 is found for each sample. what is the shape distribution

  1. AP Chemistry

    An organic compound was synthesized and found to contain only C, H, N, O, and Cl. It was observed that when .150g sample of the compound was burned, it produced .138g of CO2 and .0566g of H2O. All the Nitrogen in a different .200g

  2. chemistry

    A 2.9-L sample of paint that has a density of 4.65 g/mL is found to contain 26.7 g Pb3N2(s). How many grams of lead were in the paint sample?

  3. chem

    The pH of saturated Sr(OH)2 is found to be 13.12. A 15.0ml sample of saturated Sr(OH)2 is diluted to 250.0ml in a volumetric flask. A 15.0ml sample of the diluted Sr(OH)2 is transferred to a beaker, and some water is added. The

  4. AP Chemistry

    A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of hydrogen. If a second sample of Chloroform is found to contain 30.0 g of carbon. what is the total mass of Chloroform in the second

You can view more similar questions or ask a new question.