Quantitative Analysis of an Alloy Pre-Lab

Quantitative Analysis of an Alloy Pre-Lab - QUANTITATIVE...

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Q UANTITATIVE A NALYSIS OF AN A LLOY P URPOSE : T HE PURPOSE OF EXPERIMENT 13 IS TO USE A SPECTROMETER TO DETERMINE THE AMOUNT OF COPPER IN AN ALLOY AND TO DETERMINE THE AMOUNT OF SILVER IN AN ALLOY USING TITRATION . M ETHOD : S OLUTION OF S AMPLE P ROCEDURE : 1. M ARK LARGE TEST TUBE AND ADD 50 M L OF DI WATER . R EMOVE WATER ; ADD 2 DI WATER RINSED BOILING CHIPS . C LAMP THE TEST TUBE IN THE UPRIGHT POSITION . 2. P LACE A 0.5 G SAMPLE OF ALLOY IN TEST TUBE . 3. A SSEMBLE TRAP APPARATUS , PLACING 150 M L OF TAP WATER AND 10 M L OF 6 M N A OH SOLUTION IN ABSORPTION FLASK . 4. W ITH SUCTION ON , AD 10 M L OF 8M N ITRIC A CID TO ALLY SAMPLE AND ASSEMBLE ACCORDING TO F IGURE 2-1. I F NECESSARY HEAT REACTION TUBE GENTLY TO SPEED REACTION . N O MORE THAN 15 MINUTES SHOULD BE TAKEN TO DISSOLVE THE SAMPLE . B OIL GENTLY FOR 1 MINUTE TO EXPEL NITROGEN OXIDES ( GREEN TO BLUE ). 5. D ILUTE ALLOY SOLUTION TO 50 M L OF DI WATER . 6.
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This lab report was uploaded on 04/07/2008 for the course CHEM 1114 taught by Professor Prof.adams during the Spring '08 term at SMU.

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Quantitative Analysis of an Alloy Pre-Lab - QUANTITATIVE...

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