ANAL618 Lab - Patrick Krause ANAL 618 Standardizing a Solution ANAL 618 Standardizing a Sodium Hydroxide Solution Patrick Krause CHEM 1108 Thurs 1:00pm

ANAL618 Lab - Patrick Krause ANAL 618 Standardizing a...

This preview shows page 1 - 3 out of 5 pages.

ANAL 618: Standardizing a Solution Patrick Krause ANAL 618: Standardizing a Sodium Hydroxide Solution Patrick Krause CHEM 1108 - Thurs. 1:00pm Dr. Dang-Bachlien Introduction The purpose of the experiment is to standardize a sodium hydroxide solution by using it to titrate a solution of potassium hydrogen phthalate Background Solutions are among the most useful “tools” available to chemists. Knowing a concentra- tion of the solution, allows chemists to determine precisely how much solute is present in any specified volume of a solution. The solution can be used as a measuring device to determine the concentrations of other solutions or substances. Solutions are standardized when its concentration can be determined; a standard solution is one whose concentrations we know. The concentration of a solution is expressed as the num- ber of moles of solute present in one liter of solution, known as molarity (M). Equations KHP (aq) + NaOH (aq) NaKP (aq) + H 2 O (l) (Eq. 1) Chemicals & Safety sodium hydroxide (NaOH) — corrosive and toxic, and can cause skin burns hydrochloric acid (HCl) — toxic, corrosive solution that can cause skin burns
Image of page 1
ANAL 618: Standardizing a Solution Patrick Krause Equipment Procedure I. Delivering Water from a Buret First, labeled a 400-mL beaker “Discarded Solutions”. Closed the stopcock of your buret. Filled the buret with tap water. Opened the stopcock and drained the water through the tip into the beaker.
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 5 pages?

  • Fall '17
  • Sodium hydroxide, Buret

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture