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An ideal gas at 300K has an initial pressure of 15 bar and is allowed to expand isothermally to a pressure of 1 bar. Calculate
a) the maximum work that can be obtained from the expansion
b) ΔU
c) ΔH
d) ΔG
e) ΔS
At equilibrium, the pressures of NH3 and HCl are both equal to 0.00552 atm, and the mass of NH4Cl (s) is 35.4 g. Calculate the equilibrium pressure of NH3 after 11.3 g of NH4Cl (s) is added to the container?
66.0 mL of a 1.60 M solution is diluted to a volume of 288 mL. A 144-mL portion of that solution is diluted using 163 mL of water. What is the final concentration.
Calculate the product of 3.214 x 10-6 and 2.6x10-3. Answer using the correct number of significant figures.
What mass (in grams)of KNO3 would have to be decomposed to produce 27.1 L of oxygen measured at STP?
A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 °C and 110 kPa, find the molecular formula for this compound.
If 17.2 mL of 0.800 M hydrochloric acid solution are required to neutralize 5.00 mL of a household NH3 solution, determine the molar concentration of the NH3,ammonia?
Calculate the energy per mL if the energy per gram for Methanol (MW = 32g) is 0.83 kcal/gram and for Ethane MW
The student is supposed to observe the bacterium and make a drawing. However, the student, having just learned about the Heisenberg uncertainty principle in physics class, complains that she cannot make the drawing.
What is the percentage ionization of the acid? What is the value of Ka for the acid? 2) Periodic acid, HIO4, is an important oxidizing agent and a moderately strong acid. In a 0.20 M solution
How is the concentration of Cl determined by mercuric nitrate? Is there a color change at various levels? (similar to the Cl test for swimming pools and you'd have to match a particular color to a particular concentration?)
What makes a red solution, like cherry Kool-Aid appear red to your eye? What colors of light are absorbed and what colors are transmitted?
The vapor pressure of chlorine dioxide (ClO2 ) is 155 Torr at -22.75 ? C and 485 Torr at 0 ? C. What is the normal boiling point of chlorine dioxide?
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