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Three gases, hydrogen, argon, and krypton are confined in a 8.00 L vessel at a pressure of 11.0 atm. The vessel contains 2.00 moles of hydrogen, 3.00 moles of argon, and 4.00 moles of krypton. What is the partial pressure of argon?
1. Partial pressure of argon = ( ? ) atm
Now suppose that 6.00 moles of xenon are added to the vessel without changing the volume or temperature. What is the partial pressure of argon now?
2. Partial pressure of argon after addition of xenon = ( ? ) atm
Now suppose that an additional 5.00 moles of argon are added to the vessel, again without any change in the volume or the temperature. What is the partial pressure of argon now?
3. Partial pressure of argon after addition of 5.00 more moles of argon = ( ? ) atm
Propose stepwise sythesis of 2-cholor-4-nitrobenzoic acid starting from benzene
A 1.724 M solution of a compound in water has a density of 1.281 g/mL at 20°C. The compound has a molar mass of 62.30 g/mol.
A reaction mixture initially contains 0.050 M of all three chemical species in a 0.355 L vessel. What will the concentration of the SO2 be at equilibrium?
Calculate the current strength needed to vaporize 12 g of compound X (Mw = 180.16 g/mol and a molar enthalpy of vaporization of 106.4 kJ/mol) in 30 seconds using a 16 volt battery.
Phosphorylation of a serine residue on the dual function enzyme PFK2/FBP2 switches it from a kinase active, phosphatase inactive form to a kinase inactive, phosphatase active form
A piece of galena has a volume of 5.4 cm3. If the density of galena is 7.5 g/cm3, what is the mass (in kg) of that piece of galena?
If you wanted to adapt this procedure to prepare the analogous propoxy compound, how much propyl iodide would you have to use to carry out the reaction on the same scale?
Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of cyanic acid (HCNO) and 0.80 mole of sodium cyanate (NaCNO) in enough water to make 1.0 liter of solution. [Ka(HCNO) = 2.0 ? 10-4]
The sample required 3.7 mL of 0.0013 M NaOH to titrate the sample to neutrality. What was the pH of the gastric juice? Hypochloridia is defined as having a stomach pH greater than 4. Was the patient suffering from hypochloridia?
Calculate the number of carbon atoms in 4.56 grams of ethanol (CH3CH2OH).
What are he experimental conditions of T and P that will be used to calculate the mass of air in the flask? B) Calculate the density of air at the experimental conditons identified in part A
The variation of stress-concentration factor for a bar with fillet that is axially loaded shows that the kt approached infinity as the r/d ratio decrease.
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