Chemistry lab report..

Anonymous
timer Asked: Apr 3rd, 2017
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Question Description

I need lab report for experiment 7.. ( see attached experiment )

Lab report instructions:

- pre-lab questions

- Experimental procedures and Observation

- Results

- Data analysis

- Conclusion

- Post-lab questions

Note: There is one more Image, I could not upload due to size limit..

Chemistry lab report..
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Chemistry lab report..
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Chemistry lab report..
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Chemistry lab report..
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Chemistry lab report..
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Tutor Answer

Christine_Shabazz
School: University of Virginia

Hello, kindly provide some results for the experiment you did so that I can be able to analyse and make apprrpriate conclusion. The results am using can not give appropriate conclusion please.

Running Head: LABORATORY REPORT; EXPERIMENT 7

Experiment 7 lab Report

Your Name
Institutional Affiliations

1

LABORATORY REPORT; EXPERIMENT 7

2

EXPERIMENT 7: Qualitative Identification of Metal Ions
In this experiment, we learnt the principle involved in the basic qualitative analysis by testing
some common metal ions with appropriate chemical reagents. You will develop schemes for
the detection and identification of the cations.
Apparatus used
10*75 mm test tubes
Medicine droppers
Chemicals
3 M HNO3, 0.1M solutions of AgNO3, Ba(NO3)2, Fe(NO3)3, Hg(NO3)2, NaI, NaOH, K2CrO2,
(NH4)2SO4 and NaCl.
Safety precautions


The chemicals used were corrosive and toxic in case of ingestion.



Potassium chromate used was a strong corrosive oxidiser. It was also a possible
carcinogen.



We wore safety classes to protect our eyes.

Introduction
The science that deals with identification and composition of chemical substances is known
as analytical chemistry. It can be categorized into 2:
1. Qualitative analysis which deals with the identification but no numeric analysis. It
recognizes physical properties like colour, solubility, odours, boiling point and
melting point.

LABORATORY REPORT; EXPERIMENT 7

3

2. Quantitative analysis which deals with the determination of the amount of element in
a mixture.
Formation of complex ions and colour change
The ions and complexes of t...

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Review

Anonymous
Good stuff. Would use again.

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