How many times faster will the reaction occur
Assume that the activation energy for a certain reaction is 173 kJ/mol and the reaction is started with equal initial concentrations of reactants. How many times faster will the reaction occur at 40 degrees Celsius than at 10 degrees Celsius?
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A solid cylinder of plastic has a density of 1.6 g/cm^3. If is then cut exactly in half. What is the density of each of the pieces now and explain the reason for your answer?
Silver nitrate solution is mixed with sodium sulfide solution producing a black solid and sodium nitrate solution according to the balanced chemical equation:
A solution of sodium thiosulfate was standardized by dissolving0.1249 g KIO3 (214.00 g/mol) in water, adding a largeexcess of KI, and acidifying with HCl. The liberated iodine required 20.51 mL of the this sulfate solution to decolorize the blue s
Ammonia is commonly made form N2 and H2 bythe Haber process. Because the reaction reaches equilibrium before going completely to product, the stoichiometric amount of ammoniais not obtained.
Weigh out about 10 g of NaOH pellets and transfer them to 1 L bottle (preferably plastic as NaOH etches glass). Add about 600 mL of deionized water and mix until the NaOH dissolves. Add another 350 mL of deionized water and mix again.
Knowing that a second ionization energy of Cesium is 25.05 eV,what is the wave length of UV light required to eject electrons from the 2nd ionization of a sample of cesium with a speed of 0.2 x10 ^ 6 m / s?.
A mercury thermometer consists of a small glass bulb containing mercury metal connected to a glass capillary tube. when the volume of mercury increases, the mercury moves up the capillary.
A metal wire 1 mm in diamter x 10 m long carries a current of.1 A. If the metal is pure copper at 30 degrees C, what is the volatage drop along this wire.
Your data of the density of sodium chloride solutions should have produced a straight line when plotted. How could this plot be used to determine the density of any concentration of sodium chloride solution?
'Natural gas' can be represented by CH4 (methane) and "gasoline" can be represented by C8H18 (octane). Write the chemical formulas for the combustion of methane and octane.
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