Overall, Then, I filtered the resulting precipitate

 Overall, the purpose of this experiment was to
observe what occurs when you mixed a cation solution with an anion solution. By
mixing the Potassium Chromatin and the Lead Nitrate solution together it created
a new solution (2 KNO3 + PbCrO4). This new solution appeared yellow and had black
dots throughout it.

 

Conclusion

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Pb(NO3)2
+ K2CrO4 –à 2KNO3 +PbCrO4

When
I mixed the Lead Nitrate and Potassium Chromatin together it created a yellow precipitate.
 The chemical reaction became a new balanced
chemical reaction. Below is an example:

 

To
begin with, I was able to figure out which solution was a cation and which
solution was an anion. A cation is a positively charged ion. A cation has fewer
electrons than protons. An anion is a negatively charged ion. An Anion has more
electrons than protons. In this experiment, Potassium is the cation and Nitrogen
is the anion.

 

Discussion

 

I
also observed that the yellow precipitate had black dots throughout it.

 

Weight
of filtered precipitate: 16.160g.

 

Describe
appearance of precipitate (did it exhibit any color?): The precipitate was
yellow.

 

Observations and
Results

 

 

 

In this experiment, I
first added 50 ml(s) of Potassium Chromate solution into a 100ml beaker. Then,
I added 50 ml(s) of Lead (II) Nitrate into the same 100ml beaker. Then, I
filtered the resulting precipitate into a 250ml Erlenmeyer Flask with a Buchner
Funnel. I lastly, weighed and recorded the data. I weighed the precipitate by removing
Buchner Funnel and placing resulting precipitate into a test tube. The data I
recorded included the weight, color, and other observations of the precipitate.

Procedure

 

My
major finding while conducting this experiment was that the anion and cation
created a precipitate that was yellow.  

 

A brief summary of the experiment would be, that I started off by
mixing the Potassium Chromate solution with the Lead Nitrate solution together.
I than filtered the solution and observed the precipitate. I than weighed the
precipitate and recorded the data and all other observations.

 

The
Purpose of this experiment was to observe if there was a reaction between a
cation and an anion. If a reaction occurred, we had to observe the precipitate.
The chemicals that was used in the experiment was a Lead Nitrate solution,
Pb(NO3)2, and it was mixed with a solution of Potassium Chromate,
K2CrO4.

 

Introduction

 

CATIONS
AND ANION LAB

 

iLab,
Week #2

Name:
Courtney Dietz