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How many microliters of 1.000 M NaOH solution must be added to 25.00 mL of a 0.1000 M solution of lactic acid HC3H5O3 to produce a buffer with pH = 3.75?
The solubility of calcium arsenate (Ca3(AsO4)2, molar mass = 398.078 g) in water is measured to be 0.050 g/L. What is Ksp for this salt
The equilibrium constant Kc for the decomposition of phosgene, COCl2, is 4.63 x 10^-3 at 527 deg. C
Define three carbon atoms bear the unpaired electron, The pentadienyl radical, CH2=CH-CH=CH-CH2, has its unpaired electrons delocalized over three carbon atoms
a solution is prepared by mixing 50.0 ml of 0.17 m pbno32 with 50.0 ml of 1.9 m kcl. calculate the concentrations of
calculate the wavelength in nm of light hz illuminating a sodium surface if the threshold wavelength of sodium is 544
If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?
Calculate the wavelength (in nanometers) of a muon weighing 1.884x10^25g traveling at 325m/s.
Approximate the percent increse in waste size that occurs when a 155lb person gains 40.0 lbs of fat. Assume that the volume of the person can be modeled by a cylinder that is 4.0 feet tall.
The solubility of lanthanum iodate at a certain temperature is 9.55 x 10^-4. What is the Ksp of this compound at that temperature
Compute the volume of CO 2 and water vapour produced and the volume of oxygen remaining, when 20.0 dm 3 of propane reacts with 120.0 dm 3 of oxygen. All gas volumes are measured at the same temperature and pressure.
when a compound a c5h12o is treated with hbr it forms compound b c5h11br. the 1h nmr spectrum of compound a has one
A gas sample has an original volume of 680 ml when collected at 720 mm and 28°C. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 55°C
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