Question 6 The public health standard for the heavy metal lead is 0.01 ppm You 'are in involved in the analysis of a water sample of volume 10 litres which was shown to contain 0.185 mg of lead. • Calculate the concentration in ppm of the lead in the sample parts per million = milligrams per litre =mg L' а) 18.5 ppm b) 1.85 рpm c) 0.0185 ppm d) 0.000185 ppm

Question 6 The public health standard for the heavy metal lead is 0.01 ppm You 'are in involved in the analysis of a water sample of volume 10 litres which was shown to contain 0.185 mg of lead. • Calculate the concentration in ppm of the lead in the sample parts per million = milligrams per litre =mg L' а) 18.5 ppm b) 1.85 рpm c) 0.0185 ppm d) 0.000185 ppm

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 94QRT

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I only need the answers for the highlighted portions please :) This was a lab I performed in my chemistry, it was using vaccum filtration to collect solids from a Barium Chloride solution (BaCl2*2H2O). I took 0.780g of Barium Chloride. I added 25ml of water it at first, then transferred it to a 50ml flask and filled it to 50ml and completely mixed the solution. Then I took 38ml of 0.0538 M Na3PO4 and mixed it with the 50ml BaCl2 solution into a 250ml beaker. After mixing those, I filtered it out and collected the solids. The final weight of the solids was 1.41g
I only need the answers for the highlighted portions please :) This was a lab I performed in my chemistry, it was using vaccum filtration to collect solids from a Barium Chloride solution (BaCl2*2H2O). I took 0.780g of Barium Chloride. I added 25ml of water it at first, then transferred it to a 50ml flask and filled it to 50ml and completely mixed the solution. Then I took 38ml of 0.0538 M Na3PO4 and mixed it with the 50ml BaCl2 solution into a 250ml beaker. After mixing those, I filtered it out and collected the solids.
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