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Thallium sulfate has been used as a murder weapon, both domestically and abroad. It is known to have been used by Saddam Hussein's secret police, as well as the KGB. It is a very effective weapon, since it dissolves easily in water and has no taste or smell. Also, it takes several days for symptoms to appear, and when they do, they match those of other common illnesses, so no one attributes it to poisoning. When this compound dissolves in water, which of these ions would be present in the solution?
A. SO-
B. S2-
C. SO42-
D. O2-
E. none of the above
How many moles of NaOH must be added to 1.0 L of 1.2 M HC2H3O2 to produce a solution buffered at each pH? a) pH=3.87 b) pH=5.24
Which concentration becomes smaller as the temperature is increased from 20 degrees celcius to 80 degrees celcius
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. Calculate ?E, ?H, and w for these processes
a breathing mixture used by deep-sea divers contains helium oxygen and carbon dioxide. what is the partial pressure of
5 ml of 0.05 M CuSO4 solution was mixed with 5 ml of 3 M NH3 solution.Calculate [Cu2+] in equilibrium with Cu(NH3)4^2+. Experimentally the cell potential was found to be 0.387
You need to determine value of ?G° for CO(NH2)2(s) + H2O(l) CO2(g) + 2NH3(g)?
If this arsenic is present as arsenate, AsO4^3-, what mass of sodium arsenate would be present in a 1.10L sample of drinking water that just meets the standard
What is the molarity of each ion in a solution prepared by dissolving 0.550 g of Na2SO4, 1.192 g of Na3PO4, and 0.228 g of Li2SO4 in water and diluting to a volume of 100.00mL?
The initial concentration of lead(II)nitrate is 0.250M. and we used 1.00 ml. the lead(II)nitrate was titrated with 7.96 ml of 0.0500M of potassium iodide.
Which of the following is not considered a function of the kidneys? A. Secretion B. Reabsorption C. Transport D. Filtration
What proportion of benzoic of benzoic should be used with an equimolar mixture of adipic acid and hexamethylene diamine to produce a polymer of 10,000 molecular weigh at 99.5% conversion?
A peptide with the amino acid sequence C-P=T-Y-R-L-D-Q (MW = 995.12 g/mol) is dissolved in this solution at a concentration of 5 micromol.
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