Find out by atomic absorption spectrometry

Reference no: EM13183175

The amount of lead in a aqueous sample is determined by atomic absorption spectrometry. Two standard solutions are prepared and used to make a calibration curve, and then the absorbance of the sample is measured. the results are given below. Determine the concentration of lead in the solution.

[Pb]ppm Absorbance

1.13 .1837

3.74 .6183

unknown .2836

Reference no: EM13183175

Questions Cloud

Find the break points associated with each source : Find the break points associated with each source of capital and use them to specify each of the ranges of total new financing over which the firm's WACC remains constant.

Elements of european imperialism-bad to absolutely evil : There's little question that many of the elements of European imperialism over the centuries have ranged from bad to absolutely evil, but have there been at least some good elements as well?

Explain the use of a limited pricing strategy : The New York Times reports that Wal-Mart has decided to challenge Netflix and enter the online DVD by mail market. Because of economies of scale, Wal-Mart has a slight cost advantage relative to Netflix. Wal-Mart is considering the use of a limite..

NATO expansion assignment : Which nations have been most impacted by the 2008 NATO expansion and why? Using this group of nations, provide a detailed assessment of the concerns and end-goals that affect the various governments' pronouncements and actions. What prompts a diverge..

Find out by atomic absorption spectrometry : The amount of lead in a aqueous sample is determined by atomic absorption spectrometry. Two standard solutions are prepared and used to make a calibration curve, and then the absorbance of the sample is measured.

What are the benefits of private warehouses : customer service level, even if that means some products will occasionally be out of stock, if it gets products at a lower price. For its large retail hardware customers (like Home Depot), United regularly ships smaller orders directly to individu..

Calculate the net present value and internal rate of return : An inventory of spare parts for the robotic equipment would be purchased immediately at a cost of $60,000. This investment in working capital would be maintained throughout the life of the equipment. At the end the parts would be sold for $60,000

Team's performance : Another executive, who is part of a small planning team in which you are a member, frequently has the smell of alcohol on his breath. You have noticed that his work has not been up to standard lately and is hurting your team's performance.

What will happen to the yield on 10 year treasury bonds : Assume that an investor is risk-neutral (i.e. assume that the investor always chooses the investment with the higher expected rate of return even if it is riskier). If the yield on 1-year marketable CD's is 6% while the yield on 2-year marketable ..

User Account

All Pages