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a blood sample needs to be analysed for metals (obtained using a standard Vacutainer) using atomic absorption spectroscopy (AAS). What steps do you think need to be taken to prepare the blood sample so that it will be amenable to this type of analysis? In this case, flame AAS will be used, and it requires that the sample be a homogeneous solution with a pH of 0.
If a sample of barium contains 2.3 x 1023 atoms of barium, how many grams of barium are in the sample?
Compute the composition of the crystals and the yield of the process. Also determine the composition of the mother liquor?
Ephedrine was once used in diet pills that could be purchased without a prescription. Ephedrine is composed of 72.7% C, 9.15% H, 8.49% N, and 9.68% O.
To calculate the concentration of protein is it 10/990 or 10/1000? And does the original concentration of solution even matter when calculating the solution concentration?
Calculate the specific heat capacity of this sample of mercury if The amount of energy required to heat 2.00 grams Hg from 50 degrees C to 85 degrees C is 9.87 J.
The below table lists pressure and volume measurements for air in a cylindrical piston of an air compressor. The variables may be assumed related by: PV^k=C
0.1278- sample that is 97.50% As2O3 by mass had been used in the titration, how many milliliters of the 0.02140M KMnO4(aq) would have been required?
What is the empirical formula of the compound if Quantitative analysis of a 5.00-g sample of a gaseous compound yielded the following results: 2.00 g sulfur and 3.00 g oxygen?
The Henry's law constant for helium gas in water at 30°C is 3.7 10-4 M/atm; that for N2 at 30°C is 6.0 10-4 M/atm. If the two gases are each present at 1.2 atm pressure, calculate the solubility of each gas. What is the Molarity of He and N2
What volume of the solution must be used to make 800 mL of 0.15 M. potassium permangate from a 0.20 M. potassium stock solution.
How will you prepare the following solutions from 6.0 M solutions of acetic acid and ammonia. Give exact details. Assume that a 10-mL graduated cylinder.
What mass of Li2SO4 is formed from mixing 24.5 mL of 1.32 molar LiOH with 10.2 mL of 2.43 molar H2SO4
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