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A 22.0 L volume of an ideal gas in a cylinder with a piston is at a pressure of 3.0 atm. Enough weight is suddenly removed from the piston to lower the external pressure to 1.5 atm. The gas then expands at constant temperature until its pressure is 1.5 atm.
Find ?E for this change in state.
Find ?H for this change in state.
Find q for this change in state.
Find w for this change in state.
A mutant hemoglobin has His146 of the beta chain replaced with a threonine residue. predict what the consequence of this mutation might be. specifically
Use Excel or your favorite spreadsheet program to generate the concentration profiles. You may either estimate the stability parameters using the attached plots or (better) use the attached parameterized forms.
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 74% of the Mg2+ be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9* 10-12.]
Find the activity coefficient of H+ in a solution containing 0.010M HCl plus 0.040M KClO4. What is the pH of the solution?
Calculate the feed ratio of adipic acid and hexamethylene diamine that should be employed to obtain polyamide of approximately 15000 molecular
Compute the increase in entropy when 3.50 moles of an ideal gas is heated from 250 K to 700 K and simultaneously expanded
A current of 5.64 A is pass through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 8.80 g of nickel
What is the molarity of a solution in which 2.69 g of C12H22O11 (MM=342.29 g/m) is dissolved in enough water to make 225 mL of solution?
Complete and balance the equations for each of the following reactions. Express your answer as a chemical equation. Identify all of the phases
Calculate OH- of each aqueous solution using the following H3o+ a. 1.0 X 10-7m in OH- b.1.0 x 10-5 in OH-
How many molecules of ice at 0 degrees celsius can be melted from the complete transfer of the heat involved when 25.6 Grams of nitrogen is reacted with 34.5 L Of hydrogen gas at STP.
consider the following equilibrium system H2(g)+ Br2(g)=2HBr(g) Keq= 14.8 A closed container is initially filled with equal moles of H2 and Br2.When equilibrium is reached the (HBr) is 0.329 mol/L What is the initial (H2)
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