chem discussion

chem discussion - Guido Chiappa Chem 1AL Ash Wright 26...

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

View Full Document Right Arrow Icon
Guido Chiappa Chem 1AL Ash Wright 26 October, 2007 Discussion The purpose of this experiment is to determine the concentration and different kinds of dissolved solids in tap, ocean, and deonized water. The purpose of the analysis of water by physical change is to physically see the crystallized form of the solid present in the water. For example, after boiling out all the H20 in ocean water, the remains were white crystals, probably all NaCl. The test was conducted by first weighing a 400ml beaker, then boiling 75 ml of ocean or tap water in a clean beaker. The H20 was left to boil out completely, and if it didn’t completely boil out, the beaker was reheated in the oven to make sure the water had evaporated, leaving all the crystals. Then the mass of the beaker was subtracted from the mass of the beaker with the crystals, providing the mass of the crystals. The outcomes were very different for the salt water and the tap water. Salt water contained much more solids than tap water. One
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 03/01/2009 for the course CHEM 1AL taught by Professor Hooker during the Fall '07 term at UCSB.

Page1 / 2

chem discussion - Guido Chiappa Chem 1AL Ash Wright 26...

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