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A balloon containing 0.92 moles of gas has a volume of 18 L. Assuming constant temperature and pressure, how many moles of gas does the balloon contain when enough gas leaks out to decrease the volume to 13 L?
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If we inject 120.0 mL of liquid helium and allow the entire system to warm to room temperature (25°C), what is the pressure inside the bottle
question a 25.00-ml sample of an unknown h3po4 solution is titrated with a 0.100 m naoh solution. the equivalence point
What is the percent, by weight, of oxygen in NiSO4 ⋅7H2O?
Write the differential form of the energy and entropy representations of the fundamental equation. Identify the new intensive variables and how they relate to partial derivatives of the fundamental relations.
what is the total number of grams of patassium chloride needed to saturate exactlye 300 grams of water at 10 degrees celcius?
A 0.150-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2 ions at equilibrium? Assume the formation constant of Co(NH3)62 is 5.0× 1031.
at 1000 k a sample of pure no2 gas decomposes.2 no2g 2 nog o2gthe equilibrium constant kp is 158. analysis shows that
What is the molarity of 2.00 L NaOH Solution prepared from the dilution of 50.00 mL of 19.1 M NaOH?
How many mL of 5.0 M NaOH can be added before its buffering capacity is exhausted?
A student prepared the Ni^2+ standar solution and obtained the following buret readings for solution #2, Calculate the concentration of Ni^2+ in the resulting solution.
What is the pH of a solution created by dissolving 15.0 g of monosodium phosphate NaH2PO4 and 12.0 g of disodium hydrogen phosphate Na2HPO4. The Ka is 6.2*10^-8. How much .2 M NAOH is needed to raise the pH of the solution by .04 units
Calculate the normal boiling point of Pcl(l). Determine the vapour pressure of PCl3 (l) at 298K.
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