Why does h3o+ concentration have more influence
Why does H3O+ concentration have more influence on the precipitation of the salt of a weak acid, such as CaC2O4, than on the precipitation of the salt of a strong acid, such as AgCl or CaSO4?
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The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of water from 25.1°C to 65.3°C?
In the Haber process, at 450°C, has an equilibrium constantK = 0.30. What is the equilibrium concentration of hydrogen in a system containing the following equilibrium concentrations of nitrogen and ammonia?
For a one step reaction, the activation energy for the forward reactio is +40.0 kJ / mol and the enthalpy of reaction (ΔH) is +20 kJ/mol. What is the activation energy for the reverse reaction?
A 0.45 M solution of pentanoic acid (CH3CH2CH2CH2COOH) is found tohave a pH of 3.73 at 298K. What is the value of the acid dissociation constant Ka for this monoprotic acid?
What is the purpose of applying the three amino acid sequence RGD to the surface of biomaterials? Through what cell surface receptor does the RGD interact with?
Calculate the wavelength of radiation transmitted f from a FM radio station which operates at a frequency of 91.3MHz(Megahertz).(c=2.9979 x 10^8 m/s)
Use notation showing the symbol, the mass number as asuperscript and the atomic number asa subscript. Write the mass of the isotopes and their abundance.
Enormous numbers of microwave photons areneeded to warm macroscopic samples of matter. A portion of soup containing 235 g water is heated in a microwave oven from 21°Cto 90.°C, with radiation of wavelength 1.55 10-2 m.
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