Sunday, 20 November 2011

Sam's Schoolwork - Chemistry - Lab 5.4

Problem
Which of the solutions labelled A, B, C, or D, contains one of the metal ions listed in the ion colors chart?

Design
On Sheet

Materials
On Sheet

Procedure
On Sheet

Evidence
The flame colors were as follows;
LiNO3 - Bright Red
LiCl - Bright Red
Na - Bright Yellow
K - Violet
KIO3 - Orange/Yellow
Ca - Orange/Red
Ca(NO3)2 - Orange/Yellow
Ba - Yellow/Green
Ba(NO3)2 - Yellow/Green
Cu - Bright Green
Cu(NO3)2 - Bright Green
FeCl3 - Green
Li - Red
Mg(NO3)2 - Orange
Sr - Bright Red
Unknown Substance A - Orange
Unknown Substance B - Red
Unknown Substance C - Orange
Unknown Substance D - Bright Blue, Bright Green

Analysis
I believe that substance A was Calcium (Ca), substance B was Lithium (Li), substance C was Strontium (Sr), and D was Copper (Cu2+, Cu3+).

1 comment: