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1. What happened to the volume of gas when the syringe was submerged in each water bath? Using the concepts discussed above, describe why this occurs, keeping in mind the definition of temperature.
(Tip: Compare the volume of gas in hot water versus cold water and record your observation. Explain what you are seeing and why this is so.) 2. How do you know that pressure is held constant in your experiment?
3. Using a ruler, draw a straight line of best fit through your data points, extrapolating the line until it intersects the (negative) x-axis. Why can you assume a straight line, i.e., a linear relationship? 4. At what temperature does your line intersect the x-axis? What volume corresponds to this temperature? 5. Would it be possible to cool a real gas down to zero volume? What would most likely happen first?
6. Is your measurement of absolute zero close to the actual value (-273 °C)? How might you change the experiment to get closer to the actual value?
7. When does the gas in the syringe do work? When is work being done on the gas inside?
An enzyme is inactivated by the addition of a substance to a solution containing the enzyme. Suggest three ways to find out whether the substance is a reversible or irreversible inhibitor.
The standard change in Gibbs free energy is deltaG= -32.8kJ/mol. What is deltaG for this reaction at 298K when the partial pressures are PNO= .200atm, PO2= .100atm, and PNO3= .850atm
Show that the energy transferred as heat when the pressure on an incompressible liquid or solid is increased by delta P is equal to -alphaTVdP. Evaluate q when the pressure acting on 100cm cubic of mercury at ) degre celcius is increased by 1.0kba..
How many grams of oxygen are combined with 75 g of iron to make the iron (II) oxide compound
A 0.05M H2S solution contains 0.15M NiCl2 and 0.25M Hg(NO3)2. What pH is required to precipitate the maximum amunt of HgS but none of the NiS
Why is naturally occurring iron non-magnetic except when it is exposed to an external magnetic field (a secondary magnetic force). How is it possible to create a permanent magnet (ferromagnet) from a naturally occurring sample of iron.
What is the mass of H2SO4 in a 48.4-cm3 sample of sulfuric acid that has a density of 1.52 g.cm-3 and which consists of 55.2% H2SO4
The temperature of the glucose solution is 20degrees Celsius. What pressure drop must be applied across the membrane to stop the flow of water into the glucose solution. Assume that the glucose concentration is 1 mg mL^-1 and that the molecular we..
A certain hydrate has the formula MgSO4.xH2O. If a quantity of 54.2 g of compound heated in an oven to drive off the water. If the steam generated exerts a pressure of 24.8atm in a 2.00L container at 120 Celsius, compute x.
How many grams of sucralose would you need for a solution that has the same sweetness as one made with 2.00g of sugar? Please show how to solve problem
For a Voltaic Cell involving Pb as the anode and Ag as the cathode, what would be the initial voltage of the cell if the initial concentration of Pb2+ was 0.5M and Ag+ was 0.1M
minor component that can be hydrolyzed to yield eugenol and acetic acid. What is the structure of the minor component, which has the molecular formula C12H14O3
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