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A 265- flask contains pure helium at a pressure of 761 . A second flask with a volume of 490 contains pure argon at a pressure of 721 . If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial pressure of argon?
Write out the additional equations you would need to consider. d. Confirm that the number of equations is equal to the number of unknowns.
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 61.9 g of propane, determine the following. (a) Calculate the moles of compound. (b) Calculate the grams of carbon.
A standard hydrogen electrode is immersed in an acetic acid solution. This electrode is connected by an external circuit to an iron nail dipping into 0.10 M FeCl2. If Ecell is found to be 0.24 V, what is the pH of the acetic acid solution
How many grams of Ca(OH)2 are needed to neutralize 3.6 moles of HCl in 655 mL of solution? The molar mass of HCl is 36.46 g/mol. The molar mass of Ca(OH)2 is 74.1 g/mol.
A tank contains 40 lb. of air, 20 lb. of CO2 and 30 lb. of SO2. Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixt..
The volume of each glass was 250mL. How much heat, in kJ, did the body have to supply to raise the temperature of the water to body temperature (37 C)?
water expands when it freezes. How much work is done by 100g of water expanding as it freezes at 0 degrees Celsius and pushes back the wall of a pipe that exerts 1070 atm of pressure?
What is the pH of 50 mL of .122M sodium glycinate titrated with .100M HCL at second equivalence point
prepared in good yield as the exclusive product of hydration of an alkyne with water, SO4 and Hg to form ketone
Calculate the pH at the equivalence point if 25.00 mL of 0.010 M barbituric acid (HC4H3N2O3) is titrated with 0.20 M NaOH
Solve an equilibrium problem (using an ICE table) to calculate the of each of the pH following solutions.
The reaction SiH4 --> Si + 2H2 has a k= 0.048M/min at 500 degrees Celsius and k= 49.0M/sec at 700 degrees celsius.
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