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A perfect gas has a constant volume molar heat capacity of CV,m = 1.5× R, and a constant pressure molar heat capacity of Cp,m = 2.5× R. For the process of heating 4.50 mol of this gas with a 12 W heater for 400 seconds, calculate a) q, w, ?T, and ?U for heating at a constant volume, b) q, w, ?T, and ?H for heating at a constant pressure.
A substance, A2B, has the composition by mass of 60% A and 40% B. What is the composition of AB2 by mass?
Which of the following will precipitate as chloride salts: Ag+, Pb2+, Ca2+, K+, and Cu2+?
Sodium borohydride reacts very slowly with ethanol to evolve a gas. Write a balanced equation for this reaction.
A generic salt, AB, has a molar mass of 189 g/mol and a solubility of 6.10 g/L at 25 C what is the Ksp of this salt
Show that the enthalpy of combustion of saturated hydrocarbons may be expectred to follow the relation
How many ml of oxygen is dissolved in 50 ml blood plasma at 38 degrees C, if the partial pressure of oxygen in the plasma is 13.3 kPa?
A 30.0-mL sample of 0.165 M propanoic acid is titrated with .300 M KOH. Calculate the pH after the following amounts of base is added
Determine the concentration of a solution prepared by diluting 25.0 mL of a stock 0.188 M Ca(NO3)2 solution to 150.0 mL.
How many moles of KMnO4 are present in 25.0 mL of a 0.0900 M solution?
What is the pH of a solution made by dissolving 46g of acetic acid in enough water to make 700 ml of solution
When 20 mL of a 120 mL stock solution containing 2 M BaF2 is diluted to 80 mL, what is the concentration of F- in the new solution.
Indicate which of the following sets of quantum numbers in an atom are unacceptable. More than one answer could be right!
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