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Problem- The male sex hormone testosterone contains only C, H, and O and has a mass of 288.2089 amu as determined by high-resolution mass spectrometry. What is the likely molecular formula of testosterone?
I require skilled aid to respond the specified problem
a postulated mechanism for the reaction2n2o5 g rarr4no2 g o2 g consists of the following three stepsn2o5 harrno2 no3
A solution contains three anions at the folowing concentrations: .20M CrO4^2-, .10M CO3^2-, and .010MCl^-. if a dilut solution of AgNo3 is added to the solution
a hospital needs 1 millicurie of a radioactive pharmaceutical with a half-life of 12 hours. if delivery time takes 3
Write the complete ionic equation for the reaction that occurs when a few drops of HCl are added to the buffer.
Explain what is the difference between the syn and anti additions in terms of the nature of the product and its optical activity
Describe the difference between the following and list any particular advantage possessed by one over the other a) filters and monochromators as wavelength selectors
If 40.0 g acetylene is allowed to react with 40.0 g oxygen, how many grams CO2 are formed.
Problem- A titration is performed to determine the concentration of HCl. A 50.00 mL sample is placed in a flask and is titrated with 0.1524 M NaOH.
calculate the number of moles of He gas is present in a 1500ml balloon at a pressure of 640 torr and temperature of 25 degrees Celsius?
Polonium has a density of 9.4 g/cm3. Explain what is the mass, in kg, of a polonium brick measuring 834.1430 feet by 5.11230feet by 1433.20 feet
Consider a 54.6 g sample of H2O(g) at 119°C. What phase or phases are present when 132 kJ of energy is removed from this sample? Specific heat capacities: ice, 2.1 J/g·°C; liquid, 4.2 J/g·°C; steam, 2.0 J/g·°C, ?Hvap = 40.7 kJ/mol, ?Hfus = 6.02 kJ..
Problem- A highly supercoiled DNA molecule is cleaved at one site by a restriction endonuclease, yielding linear DNA. Predict whether each of the following will increase, decrease or remain unchanged as a consequence of this treatment.
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