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What would the change in temperature be in each change if 1 mole of an ideal gas is subjected to numerous changes in state, C= 12.47 J/Kmol.?
3 moles of an ideal gas expand isothermally against a constant opposing 100 kPa of pressure from twenty litres to sixty litres. determine w, q, ΔU, and ΔH,
A mixture of O2, CO2, and N2 has a total pressure of 697. torr. In this mixture the partial pressure of O2 is 143. torr and the partial pressure of CO2 is 197. torr. What is the partial pressure of the N2 (in torr)?
A certain sample of gas has a volume of 20.00 dm3 at 0°C and 1.000 atm. A plot of the experimental data of its volume against the Celsius temperature, ?, at constant p, gives a straight line of slope 0.0741 dm3 (°C)?1.
What molarity of aqueous magnesium chloride solution can be expected to show the same conductivity as 0.0075 M aluminum sulfate at 15,000 units.
element z has two isotopes: one has mass number of 19.0 amu is 55.0% abundant,and the isotope with mass number 21.0 amu is 45.0% abundant. what is the average atomic mass for element Z?
Calculate delta G for the reaction when the partial pressures are PH2 = 0.25atm, PCO2 = 0.81atm, PH2O = 0.62atm, and PCO = 1.20 atm.
Write the net ionic equation for this reac- tion occuring in water: Calcium sulfide and iron(II) bromide are mixed to form iron(II) sulfide and calcium bromide.
How many grams of barium sulfate are produced if 25.34 mL of 0.113 M BaCl2 completely react given the reaction.
a box contains 126000 red marbles and 885000 yelllow marbles. What sample size is required to reduce the sampling standard deviation of red marbles to 1.85%
At what pH will an aqueous solution of 0.200 M Ni^2+ begin to precipitate as Ni(OH)2 at 25 degrees C? Ksp of Ni(OH)2 is 5.5 x 10^-16 at 25 degrees C.
Explain why the salt of a weak acid, as well as the acid itself, must be present to form a bu?er solution.
What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
the properties of pure water that had been boiled and condensed and the properties of pure water that has been frozen and then melted? Explain please.
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