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A new potential heart medicine code-named X-281 is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill you are told that X-281 is a monoprotic weak acid, however because of security concerns, the actual chemical formula must remain top secret. The company is interested in the drug's Ka value for the reason that only the dissociated form of the chemical is active in preventing cholesterol buildup in arteries.To get the pKa of X-281, make a 0.093M test solution of X-281. The pH of the solution is found to be 2.40 What is the pKa of X-281?
The flow rate of a process stream of hydrogen at 50 degrees celcius and 1800 mmhg, and the value read from the calibration chart is 350 cm^3/s. Calculate the true volumetric flow rate of the gas.
In the laboratory, a student named Georgia weighed 4.75 grams of an unknown solid mixture containing benzoic acid, copper (II) sulfate and sand. She added 15mL of acetone to her sample. Which component of the mixture is dissolved in the acetone?
How many grams of copper may be formed by the passage of 22,988 C through an electrolytic cell that contains an aqueous cuprous
Zinc is used to make galvanized iron pipes. These pipes are protected from the rust reactions that would normally occur. Which statement best explains why zinc is used
Explain how much of the Earth's surface would we want to cover with solar energy collectors to power the planet for utilize by all humans. Presume that the energy collectors can only convert 10% of the available sunlight into useful power.
Each carbon-oxygen bond is somewhere between a single and a double bond. 3.Each oxygen atom has a double bond 50% of the time 4. The actual structure of formate is an average of the two resonance forms
If 100.0 grams of sugar glucose (M.W.=180.0 g/mol) is added to 300.0 grams of water, and the sugar dissolved, what will be mole fraction of glucose in the solution and what will be the freezing point of the solution
7. 0.500 g each of hydrogen, H2, and carbon monoxide, CO, are introduced into an evacuated 250. mL flask. What will be the total pressure (in atm) in the flask at 22ºC? How much of the pressure will be due to hydrogen
The infrared spectrum of a putative metal hydride complex exhibited an intense feature at 1910 cm-1 that was thought to be due to iridium-hydrogen stretching (Ir-1H). An isotopic substitution experiment aimed at confirming the origin of this spect..
Separation scheme for isolating benzoic acid, Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard
in the determination of the specific heat of a metal why is it desirable to use the minimum volume of water that will
Why does the enolate of acetone attack the carbonyl of cinnamaldehyde rather than the carbonly of another acetone molecule
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