investigation of a powder

investigation of a powder - Investigation of a Powder...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Investigation of a Powder Purpose: This experiment will teach us proper techniques of suction filtration, reinforce the technique of weighing and help us determine the percent of barium sulfate in a mixture of barium sulfate and copper sulfate. Introduction: Filtration is the technique used to separate insoluble solid material from a liquid. The solution to be filtered is poured into a filter paper that allows the liquid to pass through but not the solid. The liquid is called the filtrate, while the solid is called the precipitate or crystals. The flow of liquid can be assisted by either gravity or suction. If the solid is a product to be collected, suction filtration is used. Procedure: Obtain an unknown powder in a numbered plastic bag. Write the unknown number in your notebook. Weigh by difference, 4.5-5.2 grams of the unknown sample into a 100mL dry beaker. Add 20mL of deionized water to the beaker. Set the beaker on a hot plate with a setting of 4-5 for 10-15 minutes with occasional stirring using a glass rod.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/17/2008 for the course CHM CHM1045L taught by Professor Pamlergraves during the Spring '08 term at FIU.

Page1 / 3

investigation of a powder - Investigation of a Powder...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online