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Give the balanced net ionic equations with states of matter indicated for the process taking place when the named aqueous solutions are mixed, and indicate the type of reaction if any by the following abbreviations: precipitation, P; oxidation reduction, X; Bronsted acid-basie, N; no reaction, NR. Take into account possible hydrolysis prior to mixing.
Na2S + NH4Cl
Na2S + BaCl2
Na2SO4 + NH4Cl
Na2SO4 + BaCl2
what is the vapor pressure of ethanol at 20 celcius is 44mm, and the vapor pressure of methanol at the same temperature is 94 mm. Assuming an idea solution, what is the vapor pressure of a solution made from 30.0g of methanol and 45 g of ethanol
A sample of pure R enatiomer of 3-phenyl-2-butanone racemizes when catalytic amounts of acid are present.How would you account for the observation.
Carbon tetrachloride, CCl4, is nonpolar. What forces hold the molecules together?
lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration fo EDTA in the blood of a patient is 2.55 x 10^-8 M and the formation constant for the complex, [Pb(EDTA)]2-, is 2.00 x 10^18
Just based on the orbital occupancy of electrons, is it justifiable to distinguish between the transition and inner transition elements. Should we consider any other factors
According the Michaelis-Menten mechanism, the dependence of enzymatic reaction rates on substrate concentration [S] is Answer A. zero order at low [S] and first order at high [S] B. first order in [S] as long as substrate is at saturating concentr..
Dehydration of 2-methyl-2-pentanol forms one major and one minor organic product. Draw the structures, including hydrogen atoms
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light that can be detected by the human eye. Physical constants can be found here.
Formic acid, HFor, has a Ka value equal to about 1.8 * 10^(-4). A student is asked to prepare a buffer having a pH of 3.60 from a 0.10 M HFor and a 0.10M NaFor solution. How many milliliters of the NaFor solution should she add to 20 ml of the 0.1..
Calculate the pH of the 0.20 M NH/0.26 M NHCl buffer. What is the pH after the addition of 20.0 mL of 0.050 M NaOH to 90.0 mL of the buffer solution? The Kb of ammonia is 1.8 x 10-5.
Under certain conditions, the substance ammonium nitrite can be broken down to form nitrogen and water. If 32.4 grams of ammonium nitrite react to form 14.2 grams of nitrogen
The concentration of hydroxylamine in a solution is 0.025M. What is the concentration of hydroxide ion in the solution
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