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An aqueous solution of aniline of concentration 0.24 M is prepared . what concentration of sodium hydroxide is needed in this solution so that anilinium ion concentration remains at 1*10^-8 M. Ka for C6H5NH3+ is 2.4 *10^-5M
Compute the maximum wavelength of radiation that could have sufficient energy to effect the dissociation of nitric oxide (NO). Explain in what regions of the atmosphere would such radiation be available
Calculate the number of photons required to raise 160.0 g H2O from 38 C to 100 C, its boiling point. Assume the heat capacity of water is constant over this temperature range and is equal to 4.2 J/g-K
If 0.500 L of aqueous solution with a density of 1.05 g/ml contains 18.3 ug (micrograms) of poison, express the concentration in ppm and ppb.
How many milliliters of 1.00 M KOH should be added to 100 mL of solution containing 10.0 g of histidine hydrochloride (His HCl, FM 191.62) to get a pH of 9.30?
And, of course, ammonia is a base so there will be some NH4+ in solution also. Assume that the concentration of unprotonated NH3 is 0.040 M. What fraction of the cadmium ions are in the form of Cd2+
Enough of a monoprotic acid is dissolved in water to produce a 0.0131 M solution. The pH of the resulting solution is 2.48.
Q1. What is VSPER theory? What is the main assumption of this VSPER theory/ Give the VSPER or Lewis structures of BeF2,BF3, CH4,PF5,SF6. What is the geometry of BeF2 molecule?. Explain the geometry of BF3 molecule. Explain the geometry of CH4 molecul..
A stock solution is prepared by adding 20 mL of 1.2M NaNO2 to enough water to make 50 mL. How many moles of NO2-are in 40mL of the stock solution?
Mixture where particles remain in semipermeable membrane, Particles of this mixture remain inside a semipermeable membrane. What is it Solution, colloid or suspension?
Presume that the energy level of the outer electron can be represented by a hydrogen like formula with an effective nuclear charge Z' as well as that the relevent orbitals are 3s, 4s, and 5s respectively. Compute Z' for these atoms.
the gas ammonia can be decomposed to give 3.00 parts by mass of hydrogen and 14.0 parts by mass of nitrogen. what mass
Given an unknown sample of a solid, how would you decide that it is necessary to do a recrystallization. recystaillization-Why must you use a minimal amount of hot solvent
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