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The volume of a sample of a gas at 273 degrees Celsius is 200.0 L. if the volume is decreased to 100.0 L at constant temperature, what will be the new temperature of gas?
Write the net ionic equation for the following molecular equation. HBr is a strong electrolyte. HF is a weak electrolyte. KF(aq) + HBr(aq)---> KBr(aq) + HF(aq)
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself.
compute the change in temperature when 1.1 g of sodium chloride is dissolved in 300.0 ml of water initially at 26 c.
Determine the characteristic wavelengths if an electron are accelerated through an electric potential to a kinetic energy of 18kev.
What is the [H30+] and the pH of a benzioc acid-benzoate buffer that consists of 0.17 M C6H5COOH and 0.26 M C6H5COONa? (Ka of benzoic acid = 6.3*10^-5)
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. write none if there is not a precipitate. a)Ca(NO3)2(aq) and Na2S(aq). b)Na3PO(aq) and Pb(NO3)2(aq). c)FeCl3(aq) and NH4NO..
A turbine operates by the impact of a high velocity jet of steam against the turbine blades. The steam leaves the turbine at a lower velovity.
Element phosphorus occurs as tetratomic molcules P4. what mass of chlorine gas needed to react completely 963 gm of phospheras to form phospheras pentachloride
Close the side neck of the flask with a rubber pipette bulb (or vacuum line in case of high mp substances), and then place ice water in the centrifuge tube.
Write the balanced molecular, ionic and net ionic equations for the reaction between magnesium and cobalt(II) sulfate. (b) What is oxidized and what is reduced in the reaction?
the average concentration of sulfate ion in seawater is 2710 mg of sulfate ion per kg of seawater. what is the molarity
How do the strengths of London forces compare in CO2 and CS2? Which of these is expected to have a higher boiling point?
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