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A 2.50L volume of a monatomic ideal gas at 283K is contained by a piston at a constant pressure of 1.00 bar.The piston is lifted by reversible, isothermal, and isobaric addition of 1.45 mo lof the same gas through a port in the container.R= 8.314 JK-1mol-1.
Calculate the work, w in J for this process
Express the concentration of a 0.0790 M aqueous solution of fluoride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00 g/mL.
Calculate the pH of an aqueous solution prepared to contain 1.3 x 10^-3 M sodium nitrite (NaNO2) if the acid dissociation equilibrium constant, Ka, for nitrous acid (HNO2) is 5.1 x 10^-4.
how do the properties of iron alone compare with the iron in an unheated iron-sulfur
pure ag melts at 961.8 degc and boils at 2162 degc. the heat of fusion for ag is 11.28kj per mol and the heat of
1.The radioactive isotope tritium decays with a first-order rate constant k of 0.056 year-1. What fraction of the tritium initially in a sample is still present 30 years later? 2.A boiled egg can be cooked at 100.00C in exactly 5 minutes. At an altit..
a.)100 mL of 1.00 M HCl solution is titrated with 1.00 M NaOH solution. You added the following quantities of 1.00 M NaOH to the reaction flask. Classify the following conditions based on whether they are before the equivalence point
Why do immunoglobulins have both "constant" and "variable" regions? explain how this aspect of the structure is important for the function of each region.
If 3.6 g of butanoic acid, C4H8O2 is dissolved in enough water to make 1.0 L of solution, explain what is the resulting pH. A table with Ka values can be found here.
emitted into the atmosphere. The half-life of krypton-85 is 10.76 years. What fraction remains after 25 years?
The solution CdC2O4 was titrrated with KMnO4 .01 M and sulfuric acid was added to the solution beforehand was well, 20mL and 3M.
Nitrogen and hydrogen combine at high temperature, in the presence of a catalyst, to produce ammonia. N2(g) + 3H2(g) --> 2NH3(g) Assume 0.170 mol of N2 and 0.543 mol of H2 are present Initially
a 4.00 g sample of an aluminum-copperalloy reacts with excess hydrochloric acid. the 2.81 l of h2g produced is
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