Can you explain 3rd, 4th and 5th question 1. A 0.1430 g sample of copper was dissolved in 20 mL of 6 mol/L HNO3 and diluted to100.0 mL in a volumetric flask. What is the concentration of copper in g/L in the flask?Cu Cang + 2e[Ca"], n • 00250 33 ml 0022 5033 Mx63.546=0.1439,CoMas Ol4,1439-0.00 22 5033 molof Cporl0.1430g x-(S)63.546g0.100 LVol 0.12. The solution prepared in Q.1 was diluted one hundred times. Now what is theconcentration of copper in units of g/L?Crn = 1.43 h0.01439 Ľl%3Dnewloo3. The standards were then prepared as described in the procedure and a 5 mL aliquotof unknown was pipetted into each of them. The intercept on the x axis was -4.12mLHow many grams of copper were introduced in the 5 mL addition to each standard?4. What is the original concentration of Cu in the unknown in g/L?5. What is the original concentration of the unknown in ppm**. EXPERIMENT 6 - DETERMINATION OF COPPER IN AN AQUEOUS SAMPLE USINGATOMIC ABSORPTION SPECTROSCOPYNameDate1. A 0.1430 g sample of copper was dissolved in 20 mL of 6 mol/L HNO3 and diluted to100.0 mL in a volumetric flask. What is the concentration of copper in g L-1 in the flask?2. The solution prepared in Q.1 was diluted one hundred times. Now what is theconcentration of copper in units of g L-1?3. The standards were then prepared as described in the procedure and a 5 mL aliquotof unknown was pipetted into each of them. The intercept on the x axis was -4.12 mLHow many grams of copper were introduced in the 5 mL addition to each standard?4. What is the original concentration of Cu in the unknown in g L-1?5. What is the original concentration of the unknown in ppm**.* This means that there is exactly as much copper in 4.12 mL of standard as there is in5 mL of unknown.** In dilute aqueous solution 1 ppm = 1 mg L-1

The concentration of the standard solution in terms of g/L is 0.0143 g/L. Since the intercept on the…

1. A 0.1430 g sample of copper was dissolved in 20 mL of 6 mol/L HNO3 and diluted to 100.0 mL in a volumetric flask. What is the concentration of copper in g/L in the flask? 21 +2e 0.1430g x- -0.00 22 5033 molof C 63.5461 J.. 0025033ml.0022 5033 Mx63.546=01439,Cs O4,1439 Mons O14391 Vol 0.1 2. The solution prepared in Q.1 was diluted one hundred times. Now what is the 1439 0. 100 L concentration of copper in units of g/L? Co143 %0.01439 0.01439 L %3D lo0 3. The standards were then prepared as described in the procedure and a 5 mL aliquot of unknown was pipetted into each of them. The intercept on the x axis was -4.12mL How many grams of copper were introduced in the 5 mL addition to each standard? 4. What is the original concentration of Cu in the unknown in g/L? 5. What is the original concentration of the unknown in ppm**.

1. A 0.1430 g sample of copper was dissolved in 20 mL of 6 mol/L HNO3 and diluted to 100.0 mL in a volumetric flask. What is the concentration of copper in g/L in the flask? 21 +2e 0.1430g x- -0.00 22 5033 molof C 63.5461 J.. 0025033ml.0022 5033 Mx63.546=01439,Cs O4,1439 Mons O14391 Vol 0.1 2. The solution prepared in Q.1 was diluted one hundred times. Now what is the 1439 0. 100 L concentration of copper in units of g/L? Co143 %0.01439 0.01439 L %3D lo0 3. The standards were then prepared as described in the procedure and a 5 mL aliquot of unknown was pipetted into each of them. The intercept on the x axis was -4.12mL How many grams of copper were introduced in the 5 mL addition to each standard? 4. What is the original concentration of Cu in the unknown in g/L? 5. What is the original concentration of the unknown in ppm**.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter10: Atomic Emission Spectrometry

Section: Chapter Questions

Problem 10.11QAP

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