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A 12.0 g sample of solic NH4Cl is heated in a 5.00 L container to a high temperature. At equilibrium, the pressure of NH3 (g) is 1.22 atm. What is the value of Kp for the reaction?
NH4Cl(s) <--> NH3 (g) +HCl (g)
How many total moles are produced when 0.595 mol of methanol (CH3OH) are combusted in oxygen to produce carbon dioxide and water
Statements correctly describe(s) the relationship between the structure of a fatty acid and its melting point? a. Saturated fatty acids have melting points that increase gradually with molecular weight.
Choose the element with more negative (more exothermic) electron affinity from each of the following pairs.
A carbon-carbon bond requires 348kj/mol to break. What is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?
Balance each of the half reactions in acidic solution a)Cu(s)>Cu^2+(aq) b)SO4^2-(aq)>SO3^2-(aq) c)BrO3^-(aq)>Br^-(aq) d)IO3^-(aq)>I2(s)
A mixture of 2.20 moles of gas A and 5.81 moles of gas B has a total pressure of 0.794 atm. What is the partial pressure of each component?
the electron in the n=5 level of a hydrogen atom emits a photon with a wavelength of 1280 nm. To what energy level does the electron move?
A solution containing 3.47mM X (analyte) and 1.72 mM S (standard) gave peak areas of 3473 and 10222, respectively, in a chromatographic analysis. Then 1.00ml of 8.47mM S was added to 5.00ml of unknown X, and the mixture was diluted to 10.0ml. This..
The following reaction equation depicts the reaction between hydrazine (N2H4) and dinitrogen textroxide (N2O4) to form diatomic nitrogen and water vapor.
What is the change in the measurement of the potential if a solution of 1.00x10-3 M NaF is exchanged for another solution of 1.00x10-4 M NaF?
Enough of a monoprotic acid is dissolved in water to produce a 0.0197 M solution. The PH of the resulting solution is 6.41. Calculate the Ka for the acid.
Calculate the pH of a solution in which the concentration of the hydronium ion is 2.0 x 10^-4 M.
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