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Determine the pH of a 2M solution of sodium propanoate, NaC352 HO (a salt).
0.015 M solution of hydrogen cyanate (HOCN) has a pH of 2.67. What is the hydronium ion concentration in the solution and the ionization constant, Ka, for the acid
Identify which of the following statements about the halogenation of alkane hydrocarbons are correct. a) Halogenation of alkanes follows a chain mechanism.
A process involves the performance of electrical work in the amount w' on a system. Show that if the process is carried out at constant volume, the heat absorbed is delta U-w'.
What is the theoretical yield of PH3 when 150 grams of Na3P is mixed with 250 grams of H2O? If the actual yield is 30 grams, what is the % yield?
What volume of oxygen at 27.0 °C and 1.20 atm is required for the complete combustion of 14.0 g C2H4? C2H4 + 3 O2 ? 2 CO2 + 2 H2O
a weather balloon at earths surface has a volume of 3.9 l at 275 k and 775 mm hg. if the balloon is released volume
Calculate the final volume of the gas,and express your answer in milliliters and determine the pressure in the flask if the temperature is raised to 25 degree celcius?
How much energy will it take to ionize a hydrogen atom in its ground state? Calculate the wavelength of light that would be required to affect its ionization?
the density of titanium is 7.51 g/cm^3. What is the volume (in cubic inches) of 3.5 lb of titanium?
A certain flexible balloon contains helium gas at 855L. Initially the balloon was at sea level and the temperature was 25 degrees Celsius with 732 torr.
The student is presumed to observe the bacterium and make a drawing. Though, the student, having just learned about the Heisenberg uncertainty principle in physics class, criticizes that she cannot make the drawing. Claims that the uncertainty of ..
The emission spectrum for a one-electron ion in the gas phase. All the lines result from electronic transitions from excited states to the n=3 state. If the wavelength of line B is 142.5 nm, calculate the wavelength of line A.
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